Fits 2010-2014 Ford Mustang Base, GT, Boss 302, and Shelby GT500 models (4.6L / 5.0L).

This ROUSH Cold Air Intake Kit is engineered to reduce pressure drop while increasing induction performance and efficiency. Both the airbox tray and MAF tube are manufactured from 30% glass-filled polypropylene using CNC-machined hardened steel plastic injection molds, ensuring OE-level dimensional stability and long-term durability under hood. This kit utilizes factory mounting locations and hardware for a straightforward installation that maintains critical OE clearances to nearby components.

• High-flow oiled air filter with premium mounting clamp
• Custom MAF tube designed for optimized airflow
• Airbox tray with pre-installed EPDM foam hood seal
• Specific heat extractor foam insert for 2013-2014 models
• Includes all necessary mounting hardware and detailed instructions
• Manufacturer Part Number: 420131
• ROUSH 90-Day Limited Parts Warranty

Fits 2005-2009 Ford Mustang models including Base, Bullitt, GT, and Shelby variants (4.6L).

The Roush Performance Cold Air Intake Kit is engineered to improve the breathing efficiency of your 4.6L V8 Mustang. By replacing the restrictive factory air box with a high-flow induction system, this kit delivers cooler, denser air to the engine for more efficient combustion. The result is a noticeable improvement in throttle response and overall engine performance without sacrificing reliability.

Built for a perfect fit, every component in this kit was designed using original OEM CAD data to ensure a factory-quality finish. This is a true bolt-on performance upgrade that can be installed in under an hour using basic hand tools. Unlike many aftermarket intakes, this Roush kit is specifically designed to function with the factory engine management, requiring no PCM recalibration or custom tuning.

• Direct-fit cold air induction system for improved airflow
• Designed using OEM CAD data for superior fit and finish
• No PCM recalibration or aftermarket tuning required
• Quick bolt-on installation in under 60 minutes
• Manufacturer Part Number: 402099

Fits select 2005-2009 Ford Mustang models equipped with the 4.0L V6 engine.

Engineered to replace the restrictive factory air box, the Roush Cold Air Intake Kit improves airflow by up to 400 CFM. This system utilizes a Modular Intake Tube (MIT) manufactured from cross-linked, high-density polyethylene (HDPE). The smooth interior of the HDPE tube eliminates turbulence and provides an unrestricted path for incoming air, directly improving throttle response and engine efficiency.

At the heart of the system is the Roush synthetic nano-fiber air filter. Unlike traditional cotton-gauze filters, this media is designed to trap significantly smaller contaminants. Built to SAE standards, this filter captures nearly twice the percentage of 2-micron particulates and over six times the 0.5-micron particulates compared to leading competitors. The filter is 100% washable and reusable, designed for the lifetime of your vehicle.

• Increased Airflow: Modular Intake Tube provides up to 400 CFM more flow than stock components.
• Advanced Filtration: Synthetic nano-fiber media traps particles down to 0.5 microns.
• Durable Construction: Intake tube made from cross-linked, high-density polyethylene for heat resistance and durability.
• Maintenance: Fully washable and reusable air filter.
• Manufacturer Part Number: 402098

Includes: Roush air filter, air dam, Modular Intake Tube (MIT), and all necessary mounting hardware.

Fits 2013-2017 Ford Focus ST.

The Radium Engineering Sound Symposer Block Off provides a clean, effective solution for removing the factory sound symposer system. By deleting the plumbing that pipes artificial engine noise into the cabin, you reduce engine bay clutter and eliminate a common potential failure point for boost leaks in high-performance applications. This block-off plate installs directly onto the intake manifold, replacing the bulky factory mechanism with a low-profile, reliable seal.

• Eliminates artificial engine noise for a more authentic cabin experience
• Clears engine bay space for aftermarket components and simplified maintenance
• Removes potential boost leak paths from the factory symposer diaphragm
• Direct fit for the factory intake manifold port
• Manufacturer Part Number: 20-0356

The Radium Engineering 14-0268 is a high-performance 6AN female to female 90-degree swivel coupler designed for reliable fluid transfer in demanding automotive applications. This fitting allows for the connection of two 6AN male ends at a right angle, making it an essential component for routing fuel, oil, or coolant lines in tight engine bay compartments where space is at a premium.

• Configuration: 6AN Female to 6AN Female
• Angle: 90 Degree
• Type: Swivel coupler for easy alignment and installation
• Material: CNC machined aluminum with a durable anodized finish
• Application: Compatible with fuel, oil, and coolant systems
• MPN: 14-0268

The swivel design allows for 360-degree rotation prior to final tightening, ensuring stress-free hose routing and precise positioning of your plumbing lines. Like all Radium Engineering components, this coupler is manufactured to tight tolerances for a leak-free seal.

The Radium Engineering 14-0267 is a precision-machined 6AN female-to-female straight coupler designed for high-performance fluid plumbing. This adapter allows for the secure, direct connection of two male -6AN fittings or hose ends in a compact, inline configuration. It is an essential component for custom fuel, oil, or coolant systems where reliable, leak-free transitions are required.

Constructed from high-grade aluminum and finished with a durable anodized coating, this coupler is built to withstand the rigors of performance automotive environments while resisting corrosion from various fuel types and additives. The internal 37-degree flare seating ensures a positive seal when torqued to spec, eliminating the need for thread sealant.

• Type: Straight Coupler
• Fitting Size: 6AN Female to 6AN Female
• Material: Anodized Aluminum
• Compatibility: Universal for fuel, oil, and coolant systems
• Manufacturer Part Number: 14-0267

Fits 2004-2008 Subaru Forester XT models, including Sports, Limited, and Premium trims.

Upgrade your induction system with the PERRIN Red Turbo Inlet Hose. This high-flow component replaces the restrictive factory corrugated rubber hose, which is prone to collapsing under vacuum and degrading over time due to heat soak. By providing a larger internal diameter and a smoother interior surface, this hose allows the turbocharger to draw air more efficiently, improving throttle response and overall airflow.

Built to withstand the high-temperature environment of a turbocharged engine bay, this hose is constructed from reinforced multi-layer silicone that maintains its structural integrity under extreme conditions. It is a direct-fit performance upgrade designed to bolt up to the factory turbocharger and intake components.

• Manufacturer Part Number: PSP-INT-401RD
• Replaces restrictive OEM corrugated rubber inlet
• High-temperature reinforced silicone construction
• Smooth interior walls to reduce air turbulence
• Vibrant red finish for enhanced engine bay aesthetics

Fits 2004-2008 Subaru Forester (XT, Sports 2.5 XT, XT Limited, and XT Premium).

The PERRIN Turbo Inlet Hose replaces the restrictive, corrugated factory rubber intake with a high-flow, multi-layer reinforced silicone unit. Designed to eliminate the turbulence common in OE components, this inlet hose provides a smooth, internal diameter that maintains consistent airflow to the turbocharger compressor. Unlike the factory hose, which can become brittle or collapse under high vacuum, the PERRIN silicone construction is engineered to withstand heat and high-boost pressures without distorting.

• Construction: Multi-layered reinforced silicone for maximum durability and heat resistance
• Flow Dynamics: Smooth internal surface reduces turbulence and increases air velocity
• Reliability: Rigid design prevents hose collapse under high vacuum
• Color: Blue finish
• Manufacturer Part Number: PSP-INT-401BL

Fits 2004-2008 Subaru Forester XT including Sports, Limited, and Premium models (2.5L Turbo).

The PERRIN Turbo Inlet Hose (PSP-INT-401BK) is designed to maximize airflow to your turbocharger by replacing the restrictive, corrugated factory intake pipe. This performance hose features a smooth internal bore and a larger diameter than the original equipment, reducing turbulence and allowing the turbo to pull air more efficiently for improved throttle response and consistent power delivery.

• Reinforced construction prevents the hose from collapsing under high vacuum and heat
• Increases air volume and flow velocity to the turbocharger
• Durable multi-layer material resists oil and fuel degradation
• Direct replacement for the factory OE inlet pipe
• Manufacturer Part Number: PSP-INT-401BK

Fits 2005-2009 Subaru Legacy GT, GT Limited, and GT spec.B.

The PERRIN AFTA-MAF Intake Tube replaces the factory corrugated rubber hose between the air-box and the turbo inlet. By eliminating the accordion-style internal walls found in the OE part, this tube provides a smooth internal bore that reduces air turbulence and improves throttle response. It is a direct-fit performance upgrade that maintains compatibility with the factory air-box and MAF sensor housing.

• Manufacturer Part Number: PSP-INT-355RD
• Application: Connects factory air-box to turbo inlet
• Finish: Red
• Replaces restrictive factory corrugated hose
• Improves airflow efficiency to the turbocharger

Fits 2008-2014 Subaru Impreza WRX models (including Limited and Premium).

The PERRIN AFTA-MAF Intake Tube replaces the restrictive, corrugated factory rubber hose located between the air-box and the turbo inlet. By eliminating the accordion-style design of the OEM component, this tube provides a smoother internal surface to reduce turbulence and optimize airflow into the induction system.

• Direct replacement for the factory air-box to inlet hose
• Smooth internal bore for improved airflow efficiency
• Durable construction designed to withstand engine bay heat
• Finish: Black
• Manufacturer Part Number: PSP-INT-355BK

Fits 2002-2005 Subaru Impreza WRX.

The PERRIN AFTA-MAF Intake Tube replaces the restrictive factory corrugated rubber hose between the air filter box and the turbo inlet pipe. By smoothing the airflow path after the Mass Air Flow (MAF) sensor, this tube eliminates turbulence and can improve throttle response. Unlike the original equipment hose that can degrade or crack over time, the PERRIN version is built from high-temperature reinforced silicone to withstand engine heat and vacuum pressures without collapsing.

• Direct replacement for the factory air-box-to-inlet hose
• Smooth internal bore for optimized laminar airflow
• Multi-layer reinforced silicone construction for durability
• Resistant to high under-hood temperatures
• Vibrant red finish for an upgraded engine bay appearance
• Manufacturer Part Number: PSP-INT-350RD

Fits 2002-2005 Subaru Impreza WRX.

The PERRIN AFTA-MAF Intake Tube replaces the restrictive, corrugated factory rubber hose between the air filter box and the turbo inlet pipe. By eliminating the turbulent accordion-style internal walls of the OE piece, this intake tube provides a smoother airflow path into the turbocharger, improving throttle response and increasing intake efficiency.

Constructed from high-temperature resistant, multi-layer silicone, the AFTA-MAF hose is engineered to withstand engine bay heat without collapsing under vacuum or cracking over time. This is a direct bolt-on upgrade that maintains factory sensor locations and requires no ECU recalibration for installation.

• Direct replacement for the OEM air-box to inlet hose
• Smooth internal bore reduces air turbulence for better flow
• Durable silicone construction resists heat soak and degradation
• Finish: Black
• Manufacturer Part Number: PSP-INT-350BK

Fits 2022-2026 Subaru BRZ and Toyota GR86.

The PERRIN Cold Air Intake (PSP-INT-335RD) is designed to replace the restrictive factory intake system on the 2.4L boxer engine. By streamlining the air path and relocating the filter to pull cooler, denser air from outside the engine bay, this system improves induction efficiency and throttle response. The kit features a durable red finish that adds a high-performance look to the engine compartment while providing a more pronounced intake sound under acceleration.

• Precision fitment for 2022-2026 Subaru BRZ and Toyota GR86 platforms
• Durable Red finish for a customized engine bay appearance
• Engineered to reduce intake restriction and improve airflow
• Straightforward bolt-on installation to factory mounting points
• Manufacturer Part Number: PSP-INT-335RD

Fits 2022-2026 Subaru BRZ and Toyota GR86.

Improve your engine's efficiency and throttle response with the PERRIN Cold Air Intake. This system replaces the restrictive factory airbox and intake tube, allowing the engine to draw in a larger volume of cooler, denser air from outside the engine bay. The result is more consistent power delivery and a more aggressive induction sound during acceleration.

Built for durability and style, this intake features a high-visibility Neon Yellow powder-coated finish that provides a custom look under the hood while resisting heat and corrosion. The kit is designed as a direct bolt-on upgrade, utilizing factory mounting points for a secure and straightforward installation.

• Direct replacement for the OEM intake assembly
• High-flow design improves airflow and induction sound
• Vibrant Neon Yellow powder-coated finish for maximum durability
• Precision-engineered for a perfect fit on ZN8/ZD8 chassis
• Includes all necessary installation hardware
• Manufacturer Part Number: PSP-INT-335NY

Fits 2022-2026 Subaru BRZ and Toyota GR86.

The PERRIN Cold Air Intake system is designed to increase horsepower and torque by drawing in cooler, denser air from outside the engine bay. By relocating the air filter to the area behind the front bumper, this system significantly reduces intake air temperatures (IATs) compared to the factory airbox, which is prone to heat soak. The result is improved throttle response and a more aggressive induction sound from the 2.4L boxer engine.

Constructed from mandrel-bent aluminum, the intake tube ensures a smooth, unrestricted internal path for high-velocity airflow. The durable Hyper Pink powder-coated finish provides a distinct custom look while protecting the component from the elements. This kit is a direct bolt-on upgrade that utilizes factory mounting points for a secure, rattle-free installation.

• Relocates air filter away from engine heat for maximum air density
• Mandrel-bent aluminum tubing maintains consistent diameter for smooth flow
• High-flow filter element provides superior filtration and surface area
• Durable Hyper Pink powder-coat finish
• Includes all necessary installation hardware
• Manufacturer Part Number: PSP-INT-335HP

Fits 2022-2026 Subaru BRZ and Toyota GR86.

The PERRIN Cold Air Intake (PSP-INT-335BK) is designed to replace the restrictive factory air box, providing a more direct path for cool, dense air to enter the engine. Engineered specifically for the second-generation BRZ and GR86 platform, this system improves induction sound and engine bay aesthetics while maintaining a precise fit. The black powder-coated finish offers a stealthy, durable look that resists heat and corrosion.

• Direct bolt-on installation to factory mounting points
• Precision-engineered for the 2.4L FA24 engine
• Durable black powder-coated finish
• Includes high-flow air filter and all necessary installation hardware
• Manufacturer Part Number: PSP-INT-335BK

Fits 2017-2020 Toyota 86 models equipped with manual transmissions.

The PERRIN Cold Air Intake (PSP-INT-333RD) is designed to optimize engine performance by drawing in cooler, denser air from outside the engine bay. By replacing the restrictive factory airbox and intake tract, this system reduces turbulence and increases airflow for improved throttle response and horsepower throughout the RPM range. The intake features a striking red powder-coated finish for long-term durability and a custom look under the hood.

• Direct bolt-on installation to factory mounting points
• High-flow, reusable foam air filter for maximum induction
• Durable red powder-coated aluminum construction
• Designed specifically for the manual transmission 2.0L Boxer engine
• Includes all necessary hardware for a complete installation

Fits 2013-2016 Scion FR-S Base models.

The PERRIN Cold Air Intake (PSP-INT-330RD) is engineered to maximize performance by pulling cooler, denser air from outside the engine bay. By relocating the air filter to the area behind the front bumper, this system significantly reduces intake temperatures compared to factory setups that ingest heat-soaked air from under the hood. The mandrel-bent aluminum intake tube ensures smooth, unrestricted airflow directly to the throttle body for improved power and response.

• Mandrel-bent aluminum construction provides a smooth internal surface for maximum air velocity
• Relocates the filter away from engine heat to prevent heat soak and power loss
• High-flow foam filter element improves throttle response and induction sound
• Durable red powder-coated finish for a custom look and long-term corrosion resistance
• Manufacturer Part Number: PSP-INT-330RD

Fits 2013-2016 Subaru BRZ (Limited, Premium, Series.Blue, and Series.HyperBlue).

The PERRIN Cold Air Intake (PSP-INT-330BK) is engineered to deliver cooler, denser air to your engine by relocating the air filter away from the radiator and engine heat. This reduction in intake air temperature (IAT) translates to more consistent horsepower and improved throttle response across the RPM range. The system utilizes mandrel-bent aluminum tubing to ensure smooth, laminar airflow and eliminate the turbulence often found in factory corrugated rubber hoses.

Constructed for longevity and performance, this intake features a textured black powder-coated finish that resists heat and provides a stealthy appearance under the hood. It is a direct-fit upgrade that replaces the restrictive factory airbox, allowing the Boxer engine to breathe more efficiently while providing a more aggressive induction sound during acceleration.

• Mandrel-bent aluminum piping for maximum airflow efficiency
• Durable black powder-coated finish for heat resistance and aesthetics
• Cold air placement reduces IATs for consistent performance gains
• Includes high-flow air filter and all necessary installation hardware
• Manufacturer Part Number: PSP-INT-330BK

Fits 2022-2026 Subaru WRX.

The PERRIN Cold Air Intake System is engineered to increase horsepower and torque by delivering a consistent flow of cool, dense air to the turbocharger. By utilizing a precision-formed heatshield, this system isolates the air filter from radiant engine heat, effectively lowering intake air temperatures (IATs) for improved combustion efficiency and more reliable power delivery under load.

This intake features a CNC-machined MAF sensor housing designed to maintain factory-spec air-fuel ratios, ensuring smooth idling and predictable drivability. The kit includes a high-flow, multi-layer foam filter that provides superior filtration while minimizing restriction. Finished in a durable red powder coat, it bolts directly to factory mounting points for a clean, professional installation.

• Direct bolt-on replacement for the restrictive factory airbox
• CNC-machined aluminum MAF housing for precise sensor calibration
• Integrated heatshield prevents heat soak from the engine bay
• High-flow, washable foam filter for maximum airflow
• Durable red powder-coated finish for corrosion resistance and aesthetics
• Manufacturer Part Number: PSP-INT-328RD

Designed for the 2022-2026 Subaru WRX, the PERRIN Cold Air Intake replaces the restrictive factory airbox to improve airflow and increase performance. This system is engineered to pull cooler, denser air from outside the engine bay, helping to optimize throttle response and enhance induction sound during acceleration.

• Integrated heatshield isolates the air filter from radiant engine heat to maintain lower intake air temperatures (IATs).
• Durable black finish provides a stealthy look in the engine bay and resists corrosion.
• Direct bolt-on design utilizes factory mounting locations for a straightforward installation process.
• Includes all necessary hardware for a complete setup.
• Manufacturer Part Number: PSP-INT-328BK

Fits 2022-2026 Subaru WRX.

Enhance your engine's efficiency and throttle response with the PERRIN Cold Air Intake. Designed specifically for the VB chassis WRX, this system replaces the restrictive factory airbox to provide a more direct path for cool, oxygen-rich air to reach the turbocharger. The result is improved induction sound and a more responsive powerband.

This intake features a durable red powder-coated finish for a bold look and long-lasting protection in the engine bay. The high-flow filter element ensures superior filtration while minimizing pressure drop across the intake tract.

• Specifically engineered for 2022-2026 Subaru WRX models
• Durable red powder-coated finish
• High-flow air filter for improved induction
• Includes all necessary hardware for a complete installation
• Manufacturer Part Number: PSP-INT-327RD

Fits 2022-2026 Subaru WRX models.

The PERRIN Cold Air Intake (PSP-INT-327HP) is engineered to replace the restrictive factory airbox, allowing for increased airflow and improved throttle response. By drawing cooler, denser air from outside the engine bay, this intake helps optimize combustion efficiency for the 2.4L turbocharged engine. The system is designed for a precise fit, utilizing factory mounting points for a straightforward installation process.

• Mandrel-bent aluminum intake tubing ensures smooth, unrestricted airflow to the turbocharger.
• Integrated MAF sensor housing maintains factory-spec sensor positioning for consistent air-fuel ratio readings.
• Striking Hyper Pink powder-coated finish provides excellent corrosion resistance and engine bay aesthetics.
• Includes a high-flow filtration element designed to capture debris while minimizing pressure drop.
• Complete bolt-on kit includes all necessary hardware for a secure install.
• Manufacturer Part Number: PSP-INT-327HP

Fits 2022-2026 Subaru WRX.

The PERRIN Cold Air Intake (PSP-INT-327BK) is designed to reduce intake restriction and improve airflow to the turbocharger. By replacing the factory airbox with a mandrel-bent aluminum intake tube and a high-flow filter, this system enhances throttle response and provides a more aggressive induction sound. The intake tube features a durable black powder-coated finish for heat resistance and a clean engine bay aesthetic.

• Mandrel-bent aluminum intake tube for smooth, laminar airflow.
• Durable black powder-coated finish resists corrosion and engine heat.
• High-flow air filter increases surface area for better filtration and flow.
• Maintains proper MAF sensor alignment for consistent driveability.
• Complete bolt-on kit includes all necessary silicone couplers and hardware.
• Manufacturer Part Number: PSP-INT-327BK.

Fits 2022-2026 Subaru WRX models.

The PERRIN Cold Air Intake Heatshield is designed to isolate your air filter from the high temperatures of the engine bay. By creating a physical barrier against radiant heat, this shield ensures the intake draws in cooler, denser air, which is critical for maintaining consistent power and preventing heat soak during performance driving.

This component is specifically engineered to integrate with the PERRIN intake system. Please note that this is the heatshield only and requires the PERRIN Cold Air Intake (PSP-INT-327) for a complete installation.

• Part Number: PSP-INT-327-1BK
• Reduces intake air temperatures by partitioning the filter from the engine compartment
• Precision-fit for the 2022-2026 WRX chassis
• Durable finish designed to withstand extreme under-hood heat
• Includes necessary hardware for attachment to the PERRIN intake system

Fits 2018-2021 Subaru WRX STI.

The PERRIN Cold Air Intake (PSP-INT-326RD) is engineered to replace the restrictive factory airbox and intake tract, providing a more direct and efficient path for air to reach the turbocharger. By drawing cooler air from outside the engine bay, this system helps maintain lower intake temperatures, supporting consistent power delivery and improved throttle response during spirited driving.

• Mandrel-bent intake tubing minimizes air turbulence and restriction
• Durable red powder-coated finish for long-lasting corrosion resistance and engine bay styling
• High-flow air filter element designed for maximum surface area and filtration efficiency
• Includes all necessary mounting hardware for a secure, bolt-on installation
• Manufacturer Part Number: PSP-INT-326RD

Fits 2018-2021 Subaru WRX STI.

The PERRIN Cold Air Intake system replaces the restrictive factory airbox to improve throttle response and increase horsepower by delivering cooler, oxygen-rich air to the turbocharger. Engineered for maximum efficiency, this intake features mandrel-bent aluminum tubing that eliminates the turbulence common in corrugated factory hoses, providing a smooth path for induction air.

• Durable Construction: Mandrel-bent aluminum tubing finished in a vibrant Neon Yellow powder coat for long-lasting corrosion resistance and engine bay styling.
• High-Flow Filtration: Includes a reusable, high-flow air filter designed to provide superior filtration while maintaining high CFM ratings.
• Precision Engineering: Features a CNC-machined MAF sensor bung to maintain proper sensor alignment and ensure accurate air-fuel ratio readings.
• Complete Kit: Includes all necessary hardware for a secure installation to factory mounting points.
• Manufacturer Part Number: PSP-INT-326NY

Fits 2018-2021 Subaru WRX STI.

The PERRIN Cold-Air Intake replaces the restrictive factory airbox with a high-flow induction system designed to deliver cooler, more consistent air to the turbocharger. By utilizing mandrel-bent aluminum tubing, this intake provides a smooth internal path for laminar airflow, improving throttle response and increasing horsepower across the RPM range. The system is engineered to pull air from outside the engine bay, helping to lower intake air temperatures (IATs) during heavy load or track conditions.

Construction features a precision CNC-machined MAF sensor bung to ensure accurate air-metering and prevent the drivability issues or lean codes often associated with aftermarket intakes. The durable black textured powder-coat finish resists heat soak and provides a clean, professional appearance under the hood.

• Mandrel-bent aluminum tubing for unrestricted airflow
• Textured black powder-coat finish for corrosion and heat resistance
• Precision CNC-machined MAF sensor housing for factory-spec air metering
• Includes high-flow filter and all necessary installation hardware
• Manufacturer Part Number: PSP-INT-326BK

Fits 2015-2020 Subaru WRX Base, Limited, and Premium models.

The PERRIN Cold Air Intake system is designed to increase horsepower and torque by drawing cooler, denser air from outside the engine bay. By replacing the restrictive factory airbox with a mandrel-bent aluminum intake tube and a high-flow filter, this system improves throttle response and provides a more aggressive induction sound. The included heatshield isolates the filter from radiant engine heat, ensuring consistent performance during high-load driving conditions.

• Mandrel-bent aluminum intake tube with a durable red powder-coated finish
• Integrated heatshield prevents engine heat soak and preserves intake air temperatures
• High-flow foam air filter for superior filtration and airflow
• Direct-fit installation using factory mounting points
• Includes all necessary hardware for a complete install
• Manufacturer Part Number: PSP-INT-325RD