Custom intake systems and larger-diameter piping often introduce air turbulence that disrupts Mass Air Flow (MAF) sensor accuracy. The AEM Air Straightener is engineered to solve this by converting chaotic, turbulent air into a smooth, laminar flow before it reaches the sensor. By smoothing the air column, this insert ensures the MAF sensor receives a consistent and accurate reading, which is critical for precise ECU fueling calculations.

• Eliminates MAF signal "noise" for more stable idle and improved part-throttle driveability
• Honeycomb grid design provides minimal airflow restriction while maximizing straightening efficiency
• Essential for custom intake builds and larger-than-stock intake tube diameters where factory flow characteristics have changed
• Promotes accurate fuel trims and more predictable engine tuning

Fits 2017-2025 Ford F-150 and F-150 Raptor models.

The Cobb Redline Carbon Fiber Intake Tubes Kit replaces the factory plastic intake components with high-quality, lightweight carbon fiber. These tubes are engineered to provide a smoother airflow path to the turbochargers while offering superior heat resistance compared to standard OE plastic. As part of the Redline series, this kit is designed to enhance under-hood aesthetics with a premium finish that complements the high-performance nature of the EcoBoost platform.

• Direct replacement for restrictive factory intake tubes
• Premium carbon fiber construction for durability and heat management
• Smooth internal bore to optimize airflow to the turbochargers
• Includes all necessary hardware for a clean, bolt-on installation
• Manufacturer Part Number: FOR-006-CF_INLETS

Maintain the professional finish and structural integrity of your intake system with the Cobb 6-Piece Nylon Washer Kit. These washers are engineered specifically for COBB SF and Redline Intake Airboxes, providing a protective buffer between the assembly hardware and the airbox housing. The durable nylon construction prevents metal fasteners from marring or scratching the airbox surface during installation, ensuring a clean look and a secure, vibration-resistant fit.

• Direct replacement hardware for COBB SF and Redline Intake Airboxes
• Durable nylon construction prevents surface marring and scratches
• Ensures proper load distribution for airbox fasteners
• Complete kit includes 6 individual washers
• Manufacturer Part Number: COBB_NYLONWASHER-KIT

Fits 2019-2025 Subaru Ascent models.

The Cobb Intake Tube replaces the factory corrugated intake hose to provide a smoother, more efficient path for air entering the turbocharger. By reducing internal turbulence and maximizing airflow volume, this upgrade helps optimize your vehicle's induction system performance. Designed for a precise fit, it integrates seamlessly with the factory airbox and turbo inlet to maintain a secure, leak-free seal.

• Direct replacement for the restrictive factory rubber intake tube
• Smooth internal walls for improved airflow efficiency and reduced turbulence
• Retains factory mounting points for a straightforward installation
• Engineered specifically for the 2019-2025 Subaru Ascent
• Manufacturer Part Number: 746250

Fits 2020-2024 Subaru Outback XT and Wilderness models.

The COBB Intake Tube (745200) replaces the restrictive factory corrugated hose to provide a smoother, more direct path for air entering the turbocharger. By eliminating the internal turbulence caused by the OEM accordion-style design, this upgrade improves induction efficiency and sharpens throttle response during acceleration.

• Direct replacement for the factory intake plumbing
• Smooth internal bore reduces air turbulence and drag
• Engineered for precise fitment between the airbox and turbocharger inlet
• Durable construction handles increased heat and pressure cycles
• Manufacturer Part Number: 745200

Fits 2018-2020 Hyundai Elantra GT Sport and N Line (L4-1.6L).

The Takeda Dynamic Air Scoop (D.A.S.) is engineered to maximize performance by forcing cool, high-pressure ambient air into your intake system. By capturing fresh air from behind the front grille, this scoop increases air velocity and lowers intake temperatures, resulting in improved throttle response and engine efficiency. This part is a direct bolt-on upgrade for the factory intake system and is also compatible with Takeda Momentum (56-70005) and Stage-2 (56-10005) intake systems.

Constructed from high-quality black linear low-density polyethylene (LLDPE), this scoop is impact-resistant, heat-stable, and designed to withstand harsh engine bay conditions. The D.A.S. installs by screwing directly into the factory radiator support points with the included hardware. Please note that installation requires the temporary removal of the front bumper.

• Increases cool air flow and air velocity for better throttle response
• Durable, impact-resistant LLDPE polymer construction
• Stealthy black finish blends with the front grille
• Compatible with OE and Takeda Momentum/Stage-2 intakes
• Includes all necessary hardware for installation
• Manufacturer Part Number: 56-70005S

Fits select 2008-2026 Audi and Volkswagen models equipped with 1.8T or 2.0T engines, an APR Intake system, and Secondary Air Injection (SAI). This component is essential for vehicles where the factory air box is replaced, providing a dedicated filtration point for the SAI pump.

The APR SAI Breather Filter features a high-performance pleated cotton gauze media designed to offer superior airflow while maintaining excellent filtration efficiency. This filter is a direct-fit solution for SAI-equipped vehicles, ensuring that the air drawn into the injection system remains free of debris and contaminants that could damage the pump.

• Direct fit for vehicles equipped with Secondary Air Injection (SAI)
• Washable and reusable pleated cotton gauze filter media
• Durable construction designed for engine bay environments
• Ensures proper filtration for the SAI pump when using aftermarket intakes
• Manufacturer Part Number: CI100020-A

Fits 2007-2018 Jeep Wrangler and Wrangler JK (3.6L / 3.8L).

Protect your engine during deep water crossings and dusty trail rides with the Rugged Ridge XHD Modular Snorkel System. Unlike traditional one-piece snorkels, this modular design relocates the factory air intake to a safer, higher position to significantly reduce the risk of hydro-locking and filter clogging. The system is engineered to maintain full vehicle functionality, allowing you to fold the windshield and remove doors without interference. It is also compatible with Rugged Ridge dual battery trays and windshield light bars (low mount only).

This kit replaces the factory lower air cleaner box, requiring only minor fender modification rather than the extensive cutting needed for competitive kits. The included Pre-filter Low Mount draws cool air from outside the engine bay at the cowl level. For maximum clearance, the design is interchangeable with an optional High Mount Ram intake. Integrated manual drain valves ensure water is channeled away before it can enter the intake tract.

• Relocates intake to prevent hydro-locking and reduce dust intake
• Modular design includes Pre-filter Low Mount
• Mandrel-bent aluminum intake tubes for maximum airflow
• High-temp silicone connection hoses and thermoformed plastic construction
• Retains compatibility with folding windshields and removable doors
• Built-in manual water drain valves
• Manufacturer Part Number: 17756.22
• U.S. Patents: D687,071 and D687,072

Fits select 2006-2010 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD trucks (6.6L LBZ/LMM Duramax).

Maximize your engine's breathing capacity with the Wehrli Custom Fabrication (WCFab) 3.5-inch intake horn. This cast aluminum component features a massive 4.8-inch inlet—the largest available on the market—specifically engineered to eliminate the restrictive factory resonator connection and streamline airflow to the turbocharger. Finished in a high-quality gloss black single-stage powder coating, this upgrade provides both performance gains and a clean, custom engine bay aesthetic.

Note on Compatibility: This intake horn is compatible only with intake systems that utilize a removable boot and two clamps for the horn-to-pipe connection. It will not fit OEM or aftermarket systems where the boot is molded directly to the intake pipe.

• High-flow cast aluminum construction
• Large 4.8-inch inlet diameter for maximum air volume
• Eliminates restrictive factory resonator connection
• Durable gloss black single-stage powder coat finish
• Includes PCV port and O-ring seal for a factory-quality fit
• Supplied with silicone reducer boot and stainless steel T-bolt clamps
• Made in the USA
• Manufacturer Part Number: WCF100412-GB

Fits 2007-2018 Dodge Ram and Ram 2500/3500 trucks equipped with the L6-6.7L Cummins diesel engine.

The aFe Power BladeRunner intake heater relocation kit (MPN 46-10074) addresses a known failure point in the factory 6.7L Cummins intake system. By relocating the intake heater to a position in front of the intake manifold, this kit moves the heating element upstream of the EGR feed. This prevents heavy carbon buildup and EGR soot contamination from compromising the heater while eliminating the failure-prone factory grid heater connection that can potentially drop hardware into the intake tract.

Precision-engineered from 6061 billet aluminum alloy, this relocation block offers superior strength and a lightweight profile. It is designed for maximum versatility, maintaining full compatibility with both factory components and aFe Power performance intake manifolds or charge pipes. The kit includes all necessary gaskets and high-grade hardware for a direct, bolt-on installation.

• Constructed from CNC-machined 6061 billet aluminum alloy
• Relocates heater upstream of EGR feed to prevent soot contamination
• Eliminates failure-prone factory grid heater connection points
• Compatible with OE and aFe POWER intake manifolds and charge pipes
• Includes all necessary gaskets and installation hardware
• Manufacturer Part Number: 46-10074

Fits select 2017-2025 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD trucks (6.6L Duramax Diesel). Also compatible with 2019-2024 L5D 6.6L Duramax found in Medium Duty 4500, 5500, and 6500 GM trucks.

The WCFab 4 in. High Flow Cast Aluminum Turbo Intake Horn is engineered to eliminate the restriction of the factory plastic turbo mouthpiece. By utilizing a true 4-inch inlet and a CNC-machined anti-surge face that properly engages the turbo compressor cover, this upgrade provides a 25% greater flow area at the compressor inlet and flows 27% better than the stock component. This bolt-on part improves throttle response and engine performance without requiring additional tuning or modifications.

• CNC machined cast aluminum construction with a WCFab Red powder coat finish
• 27% increased airflow over the OEM turbo inlet
• True 4" inlet with smooth internal transitions for optimized drivability
• Includes #10 ORB threaded billet aluminum hose barb for PCV system connection
• Precision O-ring seal at the face of the turbocharger for a leak-free fit
• Compatible with stock and OEM-style aftermarket drop-in turbochargers
• Works with factory and most aftermarket cold air intake systems
• Replaces OEM turbo inlet 12678756 (GM Part Numbers: 19432816, 12682569)
• Includes all necessary mounting hardware; Made in USA

Fits K&N Orion and Apollo air intake systems.

The K&N Apollo Universal Parts Kit (A2053-RC5052) provides the necessary hardware to integrate vacuum-related accessories into your intake system. This kit is designed for plumbing smog tubes, crankcase ventilation (CCV) lines, or other vacuum sources directly into the intake tract or filter base.

Engineered for versatility, this kit allows for a professional-grade installation of ventilation tubes. To install, the user must create a 1/4-inch NPT threaded fitting in the filter base, valve cover, or desired assembly point to ensure a secure, airtight connection.

• Designed for K&N Orion and Apollo air intake systems
• Facilitates connection for smog and crankcase ventilation (CCV) tubes
• Requires creation of a 1/4-inch NPT threaded fitting for installation
• Ensures proper routing for vacuum-related accessories
• Manufacturer Part Number: A2053-RC5052

Fits 2016-2018 Ford Focus RS models.

The Cobb Sound Suppression Chamber is designed to eliminate the high-pitched resonance or "whistling" noise that often occurs when installing an aftermarket intake or increasing boost levels on the Ford Focus RS. This resonance is a byproduct of the factory turbocharger's bypass valve tract and can be distracting during spirited driving.

CNC-machined from high-grade billet aluminum and finished in black anodizing, this chamber bolts directly to the turbo compressor housing in place of the factory plastic unit. It maintains proper airflow dynamics while effectively dampening unwanted acoustic frequencies without negatively impacting performance or throttle response.

• Direct replacement for the factory plastic suppression chamber
• CNC-machined billet aluminum construction for durability
• Black anodized finish for corrosion resistance
• Includes pre-installed O-ring for a leak-free seal
• Maintains factory-like fitment and utilizes OE mounting points
• Manufacturer Part Number: 894600

Fits 2016-2021 Toyota Tacoma models (V6-3.5L).

The aFe Power Momentum GT Dynamic Air Scoop (MPN 54-76005-S) is engineered to enhance your intake efficiency by capturing cool, high-pressure air from the front of the vehicle and directing it into the intake system. This additional air volume helps lower intake temperatures and improve throttle response by ensuring your V6 engine isn't limited to air drawn from inside the engine bay.

Constructed from high-quality, heat-resistant roto-molded plastic, this air scoop is CAD-designed to integrate perfectly with your vehicle's existing hardware. The durable one-piece design ensures long-lasting performance under the hood while maintaining a factory-style appearance. Installation is straightforward and hassle-free, requiring no permanent modifications.

• Directs ambient air from the front grille into the intake system for improved efficiency
• CAD-designed roto-molded construction for maximum durability and precise fitment
• Seamlessly integrates with Momentum GT intake systems
• Simple, hassle-free installation using existing factory mounting points
• Specifically engineered for 2016-2021 Toyota Tacoma V6-3.5L
• Manufacturer Part Number: 54-76005-S

Fits 2022+ Subaru WRX and 2019-2023 Subaru Ascent.

The Torque Solution Titanium Top Mount Charge Pipe is designed to replace the restrictive and failure-prone factory plastic and rubber plumbing. Engineered from high-grade titanium, this pipe eliminates the expansion common in OEM components under boost, ensuring a consistent, high-velocity airflow path to the intercooler. The burnt blue finish provides a premium custom aesthetic while offering excellent resistance to corrosion and heat soak.

• Fabricated from lightweight, high-strength titanium
• Distinctive burnt blue finish for a custom engine bay look
• Direct-fit replacement for the factory top mount charge pipe
• Maintains structural integrity under high boost pressures
• Improves throttle response by reducing airflow turbulence
• Manufacturer Part Number: TS-SU-812BU

Fits 1987-1992 Mazda RX-7 models. This GReddy Compression Tube is engineered as a high-performance replacement for the factory intake elbow, connecting the intercooler outlet to the throttle body.

Constructed from durable cast aluminum, this component is designed to withstand the increased boost pressures and heat cycles that often cause original plastic units to crack or leak. The smooth internal profile reduces intake turbulence, ensuring consistent airflow delivery to the rotary engine. Whether you are performing a factory restoration or building a high-boost FC3S, this tube provides the structural integrity required for reliable performance.

• Direct replacement for the factory compression tube
• High-strength cast aluminum construction
• Designed for high-boost applications
• Precision fitment for 1987-1992 Mazda RX-7
• Manufacturer Part Number: 12441000

The K&N 85-6004 Universal Apollo Mounting Bracket provides a stable, secure mounting solution for Apollo Cold Air Induction Systems and various universal air filter applications. In high-vibration engine bay environments, a dedicated mounting bracket is essential to prevent intake tube fatigue and maintain the filter's position relative to heat sources and moving components.

This bracket assembly is engineered for versatile installation, allowing for custom fitment across a wide range of vehicle platforms. Whether you are performing a custom intake fabrication or replacing a worn original bracket, this kit ensures your induction system remains firmly anchored for consistent performance.

• Designed to securely support K&N Apollo induction systems and universal filters
• Includes high-quality stainless steel hose clamp for a reliable grip
• Comes with all necessary mounting hardware for simplified installation
• Durable construction to withstand engine bay heat and vibration
• Manufacturer Part Number: 85-6004

The AIRAID 723-478 Premium Replacement Filter is a high-flow performance component engineered to optimize engine airflow and filtration efficiency. Constructed with multiple layers of specialized filter media, this filter utilizes AIRAID’s proprietary filtration technology to capture fine debris more effectively than standard cotton-gauze filters while maintaining low restriction for improved engine response.

Whether used as a service replacement for an AIRAID intake system or for custom universal applications, this filter is designed to withstand harsh operating environments. Every unit is proudly manufactured in the USA using premium materials to ensure long-term durability and consistent performance.

• Manufacturer Part Number: 723-478
• Filter Type: Premium Kit Replacement Filter
• Media: Multi-layer specialized filtration technology
• Construction: High-airflow design with integrated end caps
• Origin: Made in the USA

Fits 2015-2020 Acura TLX Base and SH-AWD (V6-3.5L).

The Takeda Momentum Dynamic Air Scoop (D.A.S.) is a performance-focused upgrade designed to increase airflow and intake velocity. By capturing cool air directly from the front of the vehicle, it directs a high volume of ambient air into the auxiliary opening of the Momentum intake housing. This scoop works in conjunction with factory ducts under the battery to channel additional air over the battery and into the intake system, ensuring a consistent supply of dense, cool air.

Precision-engineered for a seamless fit, the D.A.S. is CAD-designed and manufactured from high-quality cross-linked polyethylene (XLPE). This material is specifically chosen for its durability, impact resistance, and ability to resist heat soak in high-temperature engine bays. The snap-in design allows for a hassle-free installation without the need for cutting or drilling factory components.

• Directs cool air from the front inlet into the intake for maximum airflow
• Constructed from heat-resistant XLPE (Cross-linked Polyethylene) polymer
• Required for use with Takeda Momentum Intake Systems (P/N: 56-70016R and 56-70016D)
• CAD-designed for precise vehicle fitment and optimized styling
• Simple snap-in installation with all necessary hardware included
• Manufacturer Part Number: 56-70016S

This 6-pack of K&N spring clips is engineered specifically for K&N universal air box assemblies. These clips are critical for maintaining a positive, airtight seal between the air filter element, the air box base, and the top plate to prevent unfiltered air from bypassing the intake system.

Each clip is designed for consistent tension and durability in high-performance environments. Measuring 0.75 inches wide and 4.45 inches long, these black-finished clips provide the necessary clamping force to secure your filtration components.

• Ensures a positive seal between filter, base, and top housing
• Width: 3/4 in. (0.75 in.)
• Length: 4.45 in.
• Finish: Black
• Quantity: 6 clips per package
• Manufacturer Part Number: 85-83897

Fits select 1985-1997 Chevrolet Camaro, Corvette, Impala SS, and Pontiac Firebird (V8-5.0L / 5.7L).

Deteriorated throttle body gaskets are a common source of air and coolant leaks, often resulting in rough idling and poor driveability. The BBK Performance Twin 52mm Throttle Body Gasket Kit is designed to restore a reliable seal on GM 305/350 and LT1 engines. These gaskets are constructed from BBK's premium "Secure Seal" material, providing superior resistance to the heat and pressure of the intake system compared to standard replacement gaskets.

Engineered for both stock and aftermarket installations, this kit is the same high-quality set included with BBK Power Plus series throttle bodies. Whether you are performing routine maintenance or installing a performance upgrade, replacing the gaskets ensures a leak-free interface between the throttle body and the plenum.

• Fits twin 52mm throttle body applications
• Constructed from premium "Secure Seal" gasket material
• Prevents air and coolant leaks for consistent engine performance
• Suitable for stock or aftermarket throttle body upgrades
• Proudly made in the USA
• Manufacturer Part Number: 1583

The AIRAID 701-461 Premium Filter is a high-performance universal air filter engineered for custom applications and intake system upgrades. Designed to provide superior filtration without compromising airflow, this filter serves as a direct replacement for restrictive factory elements or as a specialized component for custom-built induction systems.

Constructed with AIRAID’s multi-layer filtration technology, this filter captures fine dirt particles that standard cotton-gauze performance filters may allow through. The robust design ensures consistent performance and engine protection under a variety of operating conditions. Proudly manufactured in the USA, it uses premium materials to meet rigorous production standards and offers a straightforward installation process that takes only minutes.

• Manufacturer Part Number: 701-461
• Filter Media: Advanced multi-layer performance technology
• Design: Universal fit for custom applications or intake upgrades
• Origin: Designed and manufactured in the USA
• Installation: Quick-fit design for immediate replacement

Fits 2017-2021 Nissan Titan models (V8-5.6L).

The aFe Power Momentum GT Dynamic Air Scoop (D.A.S.) is a specialized intake component designed to increase airflow and velocity into your engine by capturing cool, pressurized air from the front of the vehicle. By directing this air directly into the auxiliary scoop of the Momentum GT intake system, it significantly lowers intake air temperatures (IAT) for more efficient combustion.

Constructed from CAD-designed, roto-molded plastic, this scoop is built for high-strength durability and a precise fit within the engine bay. It features a straightforward snap-in installation that requires no cutting, drilling, or permanent modifications to the factory mounting points.

• Designed specifically for use with Momentum GT Intake Systems (P/N: 51-76108 & 54-76108)
• CAD-designed roto-molded construction for optimal airflow geometry
• Directs forward-facing pressurized air into the intake system
• Simple snap-in installation with no cutting or drilling required
• Manufacturer Part Number: 54-76108-S

Fits select 2011-2023 Dodge Challenger, Charger, and Chrysler 300 models. This aFe POWER Momentum GT Dynamic Air Scoop (D.A.S.) is designed to maximize intake efficiency by utilizing the factory Air Catcher headlight inlet. By guiding cool, ambient air from outside the vehicle directly into the intake system, it significantly reduces intake air temperatures compared to drawing air from the engine bay. This results in a denser intake charge for improved throttle response and overall engine performance.

Constructed from high-quality, cross-linked polyethylene (XLPE), this air scoop is engineered to resist heat soak and maintain durability under high-temperature conditions. The vibrant red finish provides a custom performance accent under the hood. Installation is a simple snap-in process that requires no vehicle modifications. This scoop is compatible with aFe POWER Momentum GT intake systems (P/N: 51/54-72201, 51/54-72202, and 51/54-72203) as well as factory air boxes on models equipped with the Hellcat airbox.

• Fits 2011-2023 Dodge Challenger, 2012-2020 Dodge Charger, and 2012-2014 Chrysler 300 models
• Reduces intake air temperatures by guiding ambient air through the factory headlight inlet
• Heat-resistant XLPE (cross-linked polyethylene) construction for long-term durability
• Hassle-free snap-in installation with no cutting or drilling required
• Note: Does not fit models equipped with Rhombi Illuminated air catcher headlamps or certain R/T Scat Pack headlamp configurations (see 50-70009S)
• Manufacturer Part Number: 54-72203-SR

Fits 2015-2020 BMW M3 and M4 models (Base, CS, and GTS). These aFe POWER Magnum FORCE Dynamic Air Scoops (D.A.S.) are engineered to lower intake air temperatures by capturing and forcing cool, high-pressure air from behind the front kidney grilles directly into the factory intake tracts. By increasing the volume of fresh air available, these scoops help improve throttle response and maintain performance during spirited driving.

Built for the harsh environment behind the grille, these scoops are CAD-designed from high-quality red linear low-density polyethylene (LLDPE). This material is selected for its extreme impact resistance, durability, and heat stability. The vibrant red finish provides a distinct performance aesthetic that is visible through the vehicle's kidney grilles.

Installation is straightforward and requires no permanent vehicle modifications. The scoops secure to the factory reinforcement support bar using the included plastic push-in rivets and are designed to maintain full compatibility with both factory intake systems and aFe POWER intake upgrades.

• Durable Construction: Made from impact-resistant, 100% recyclable LLDPE for long-term reliability.
• Temperature Reduction: Specifically designed to lower IATs by increasing cool air recovery.
• Hassle-Free Install: Bolts to factory mounting points with no cutting or drilling required.
• Compatibility: Works with OEM and aFe POWER intake systems.
• MPN: 54-13032SR

Fits 2017-2025 Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks equipped with the 6.6L Duramax Diesel (L5P), including 2019-2024 Medium Duty 4500-6500 (L5D) models.

Upgrade your 6.6L Duramax with the WCFab High Flow Cast Aluminum Turbo Intake Horn. This 4-inch inlet replaces the restrictive factory plastic mouthpiece to provide a 25% larger flow area at the compressor inlet and 27% better airflow overall compared to stock. Designed with a strategic anti-surge face that properly engages the turbo compressor cover, it optimizes airflow and drivability for both stock and OEM-style aftermarket drop-in turbochargers.

Constructed from CNC-machined cast aluminum for superior durability, this intake horn features an O-ring seal at the turbocharger face for a leak-free fit. It includes a #10 ORB threaded billet aluminum hose barb for a secure PCV system connection. This is a direct bolt-on upgrade that requires no tuning and is compatible with both factory and aftermarket cold air intake systems.

• Manufacturer Part Number: WCF100775-GW
• Replaces GM Part Numbers: 12678756, 19432816, 12682569
• Material: CNC Machined Cast Aluminum
• Finish: Gloss White Powder Coat
• Inlet Size: 4-inch
• Flow Increase: 27% better than stock
• Included Hardware: Mounting hardware and O-ring seal
• Origin: Made in USA

Fits 2017-2025 Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks equipped with the 6.6L Duramax L5P engine.

The WCFab 4 in. High Flow Cast Aluminum Turbo Intake Horn is a precision-engineered solution for the restrictive factory plastic turbo mouthpiece. Featuring a true 4-inch inlet and a smooth internal transition to an anti-surge face, this bolt-on upgrade increases the flow area at the compressor inlet by 25% and improves overall flow by 27% over stock. The CNC-machined cast aluminum construction ensures superior durability and provides a more aggressive engine and turbocharger sound without the need for aftermarket tuning.

• True 4" inlet with anti-surge face for optimized compressor engagement
• CNC machined cast aluminum construction with WCFab Grey powder coat finish
• Includes #10 ORB threaded billet aluminum hose barb for PCV system connection
• O-ring seal at the turbocharger face for a secure, leak-free fit
• Flows 27% better than the factory mouthpiece
• Compatible with stock and OEM-style drop-in turbochargers
• Replaces OE turbo inlet 12678756 (GM part numbers 19432816 and 12682569)
• Compatible with 2019-2024 L5D 6.6L Duramax in 4500/5500/6500 Medium Duty trucks
• Includes all necessary mounting hardware
• Manufacturer Part Number: WCF100775-GRY

Fits select 2017-2025 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD trucks, plus 2019-2024 4500/5500/6500 Medium Duty models (6.6L Duramax L5P / L5D).

Eliminate the airflow bottleneck in your Duramax engine with the WCFab High Flow Cast Aluminum Turbo Intake Horn. This true 4-inch diameter inlet replaces the restrictive factory plastic mouthpiece, delivering a 25% increase in flow area at the compressor inlet and a 27% improvement in total airflow over the stock component. Engineered with a smooth-flowing transition and a strategically designed anti-surge face, this intake horn optimizes airflow and drivability while providing a more aggressive engine and turbo sound.

Constructed from CNC-machined cast aluminum for superior durability, this is a direct bolt-on upgrade that requires no aftermarket tuning. It features an O-ring seal at the turbocharger face for a leak-free fit and includes a #10 ORB threaded billet aluminum hose barb for a secure PCV system connection. This intake horn is compatible with both OEM and aftermarket cold air intake systems and works with stock or drop-in style performance turbochargers.

• True 4" CNC machined cast aluminum construction
• Flows 27% better than the factory mouthpiece
• Anti-surge face design for optimized compressor engagement
• Includes #10 ORB billet aluminum PCV hose barb and mounting hardware
• Durable gloss black powder coat finish
• No tuning or additional modifications required
• Replaces OE part number: 12678756 (GM Part Numbers 19432816, 12682569)
• Supersedes WCFab part numbers: WCF100721, WCF100833
• Manufacturer Part Number: WCF100775-GB
• Made in the USA

Fits 2006-2011 Honda Civic Si and 2008 MUGEN Si models.

Replace the restrictive, accordion-style factory airbox hose with the Mishimoto silicone induction hose for improved airflow and reliability. Designed specifically for the 8th generation Civic Si, this kit maintains compatibility with the stock airbox while smoothing internal dimensions to maximize flow to the throttle body. The 5-layer silicone construction is reinforced with heat-resistant embedded fibers to handle higher temperatures and pressures than standard rubber.

To prevent hose collapse during VTEC engagement and high-vacuum conditions, Mishimoto integrates molded steel rings for superior structural rigidity. This kit provides a noticeable improvement in engine tone and throttle response without requiring a full aftermarket intake system or custom tuning. Installation is straightforward and typically completed in under 30 minutes using basic hand tools.

• Direct fit for 2006-2011 Honda Civic Si
• Constructed from 5-layer silicone with heat-resistant embedded fibers
• Internal steel reinforcement rings prevent collapse under vacuum
• Smoothed internals for maximum airflow and improved throttle response
• Compatible with factory airbox
• Manufacturer Part Number: MMHOSE-CIV-06SIIHBK
• Mishimoto Lifetime Warranty

Fits select 2005-2014 Subaru Impreza WRX, WRX STI, and Legacy GT models.

The Torque Solution Post MAF Silicone Intake Hose (TS-SU-009) is a high-strength upgrade for the factory intake tract. Designed to replace the failure-prone and restrictive OEM rubber hose located after the Mass Air Flow sensor, this silicone alternative provides a smoother internal surface for optimized airflow and increased durability under high vacuum and elevated engine bay temperatures.

• Multi-layer reinforced silicone construction for maximum durability
• Replaces restrictive factory rubber post-MAF intake hose
• Smooth interior walls reduce air turbulence to the turbo inlet
• Resists heat soak and prevents collapsing under high load
• Direct fit replacement for a straightforward installation
• Manufacturer Part Number: TS-SU-009

Engineered to withstand the rigors of performance driving, this hose ensures your intake system remains airtight and efficient, preventing the common cracking and leaking issues associated with aged factory rubber components.