The Vibrant Performance 11819 4-Ply Aramid Reinforced Hump Hose is engineered for high-temperature and high-pressure charge air cooler (CAC) systems. Featuring three integrated stainless steel rings, this coupler effectively prevents excessive expansion under heavy boost, while the hump design compensates for minor piping misalignment and helps isolate engine vibrations.

Built to handle extreme conditions, this coupler utilizes high-temperature resistant aramid reinforcement fabric between each silicone layer. This construction ensures a reliable seal and structural integrity for both hot and cold side applications, including boost, air, water, and coolant service.

• Manufacturer Part Number: 11819
• Inner Diameter: 2.75 in
• Length: 6 in
• Reinforcement: 4-Ply Aramid Fabric
• Expansion Control: 3 Stainless Steel Rings
• Operating Temperature: -75°F to 392°F (-60°C to 200°C)
• Material: Aramid Reinforced Silicone
• Application: Boost, air, water, and coolant service

Vibrant Performance Aramid Reinforced Charge Air Cooler (CAC) Hose Couplers are engineered for high-performance forced induction and cooling systems. This hump hose design effectively compensates for minor piping misalignment while isolating vibrations that could otherwise lead to fatigue in rigid plumbing. The integrated three stainless steel rings serve as external reinforcement, preventing the hose from excessive expansion or ballooning under elevated boost pressures.

• Construction: 4-ply silicone reinforced with high-temperature resistant Aramid fabric for superior structural integrity.
• Temperature Resistance: Operating range from -75°F to 392°F (-60°C to 200°C).
• Pressure Stability: Features 3 stainless steel rings to maintain shape under high-pressure loads.
• Compatibility: Suitable for hot and cold side charge air, water, coolant, and air service applications.
• Dimensions: 2.5in (63.5mm) Inner Diameter x 6in (152.4mm) Length.
• Manufacturer Part Number: 11818

The Turbosmart TS-HS275075-BK is a heavy-duty straight silicone coupler designed for high-performance intake and cooling system plumbing. Constructed from multi-layered reinforced silicone, this 75mm long hose is engineered to withstand the extreme temperatures and pressures found in turbocharged and supercharged applications without swelling or fatigue.

• Inner Diameter: 2.75" (70mm)
• Length: 75mm
• Wall Thickness: 5mm
• Material: Multi-layered reinforced silicone
• Temperature Resistance: -50°C to 170°C (-60°F to 340°F)
• Pressure Rating: Up to 220 PSI
• Manufacturer Part Number: TS-HS275075-BK

The Turbosmart Silicone Hose Reducer (TS-HR225275-BK) provides a secure, high-pressure transition between 2.25-inch and 2.75-inch components in forced induction systems. Engineered for high-performance applications, this reducer is built to withstand extreme boost pressures and the high-temperature environment of a turbocharged or supercharged engine bay.

• Dimensions: 2.25" (57mm) to 2.75" (70mm) ID transition
• Construction: Multi-layer reinforced silicone with a 5mm wall thickness for superior abrasion resistance
• Pressure Rating: Designed to handle high-boost applications up to 220 PSI
• Temperature Range: Operating limits from -50°C to 170°C (-60°F to 340°F)
• Durability: Resists swelling and structural fatigue common in OE rubber hoses
• MPN: TS-HR225275-BK

This reducer is ideal for connecting intercooler piping, turbocharger outlets, or intake plenums where size transitions are required without sacrificing flow or reliability.

The Turbosmart 90-degree silicone hose elbow (TS-HE90200-BK) is a heavy-duty plumbing solution designed for high-performance forced induction, intake, and cooling systems. Built to withstand the rigors of high-boost environments, this 2.00-inch ID hose features a 5mm multi-layered reinforced wall that provides superior resistance to expansion and collapse under pressure or vacuum.

• Inner Diameter: 2.00 inches
• Angle: 90 Degrees
• Construction: 5mm multi-layered reinforced silicone
• Temperature Range: -50°C to 170°C (-60°F to 340°F)
• Maximum Pressure Rating: 220 PSI
• Finish: Black
• Manufacturer Part Number: TS-HE90200-BK

Engineered for high-performance turbocharger and engine plumbing, this Turbosmart 45-degree silicone elbow (TS-HE45275-BK) offers superior durability for custom intake and charge pipe configurations. The multi-layered construction provides high burst strength and structural integrity under vacuum or boost pressure.

The hose features a substantial 5mm wall thickness, allowing it to maintain its shape and seal in demanding thermal environments. Whether you are routing air for a turbocharger, intercooler, or coolant system, this black silicone elbow is designed to resist oil, fuel vapors, and extreme temperature cycles without degrading.

• Inner Diameter: 2.75 inches
• Angle: 45 Degrees
• Wall Thickness: 5mm
• Temperature Resistance: -50°C to 170°C (-60°F to 340°F)
• Pressure Rating: 220 PSI
• Construction: Multi-layered reinforced silicone
• Finish: Black with Turbosmart branding
• MPN: TS-HE45275-BK

The Torque Solution 2.75-inch to 3-inch Transition Silicone Coupler is a universal reducer designed to provide a secure, leak-free connection between different intake or intercooler piping diameters. Built to withstand high boost pressures and extreme engine bay temperatures, this coupler is an essential component for custom turbo, supercharger, or cold air intake projects where reliability is critical.

• Part Type: Transition Silicone Coupler / Reducer
• Dimensions: 2.75 in to 3 in
• Color: Black
• Fitment: Universal application for custom plumbing
• Manufacturer Part Number: TS-CPLR-T2753BK

The Torque Solution 2.5-inch 90-degree silicone elbow (TS-CPLR-90D25BK) is a universal plumbing solution engineered for high-performance automotive applications. Designed to facilitate custom routing for intake systems, intercooler piping, and turbocharger setups, this coupler provides the thermal stability and pressure resistance required for demanding engine bays.

Constructed from multi-ply reinforced silicone, this elbow is built to withstand significant boost pressures and high temperatures without expanding or degrading. The smooth internal bore maintains consistent airflow velocity, while the flexible material helps isolate engine vibration from hard piping. Its universal design makes it a staple for custom fabrication and aftermarket upgrades.

• Part Type: 90-Degree Silicone Elbow
• Inner Diameter: 2.5 inches (63.5mm)
• Material: Multi-ply reinforced high-temperature silicone
• Finish: Black
• Application: Universal fitment for air, coolant, and boost applications
• Manufacturer Part Number: TS-CPLR-90D25BK

The Spectre 9781 4-inch 90-degree intake coupler elbow allows for tight-radius plumbing in custom air intake systems. Designed to connect two components or intake tubes with a 4-inch outside diameter, this coupler is manufactured from durable black PVC for a clean, professional appearance. This elbow provides the flexibility needed to route air induction around tight engine bay constraints.

• Connects two 4-inch outside diameter (OD) components or intake tubes
• Tight 90-degree bend for compact engine bay routing
• Includes two stainless steel worm gear hose clamps for a secure, leak-free installation
• Durable black PVC construction
• Manufacturer Part Number: 9781

Note: This component is designed for air intake applications only. It is not suitable for use on pressurized components, such as turbocharger or supercharger discharge outlets.

The Spectre 9775 Flex Coupler is engineered to provide a secure and flexible connection between air intake tubes. This 4-inch inside diameter coupler allows for custom intake routing, accommodating slight misalignments and absorbing engine vibration that can stress rigid components. Manufactured from a blend of EPDM and TPE materials, it offers durability and heat resistance for standard naturally aspirated configurations.

• Provides a flexible junction for air intake tubes with a 4-inch outside diameter
• Constructed from high-quality black EPDM/TPE for long-term reliability
• Designed to assist in custom intake system fabrication and routing
• Ideal for naturally aspirated applications
• Note: Not recommended for use on turbocharged or supercharged engines
• Manufacturer Part Number: 9775

The Spectre 97711 air intake coupler provides a reliable connection for custom air induction setups. Designed for versatility, this coupler allows you to join 4-inch outside diameter intake tubes, providing the flexibility needed to route your intake away from heat sources or toward fresh air inlets. Manufactured from high-quality EPDM and TPE materials, it offers a secure fit and a clean, black finish for your engine bay.

• Inside Diameter: 4 inches
• Material: EPDM/TPE construction
• Finish: Black
• Application: Connects air intake tubes for custom routing
• Manufacturer Part Number: 97711

Note: This component is designed for naturally aspirated applications and is not recommended for use on turbocharged or supercharged engines.

The Spectre 9771 Intake Coupler is engineered to join 4-inch outside diameter (OD) air intake tubes or components together for custom induction systems. This 2-inch long coupler is manufactured from durable black PVC, providing a clean look and a reliable seal for your intake tract.

This kit comes complete with two stainless steel worm gear hose clamps to ensure a secure installation right out of the box. Please note that this component is designed for the vacuum side of the intake system and is not suitable for use on pressurized components, such as turbocharger or supercharger discharge outlets.

• Fits components with a 4-inch outside diameter
• Length: 2 inches
• Material: High-quality black PVC
• Includes two stainless steel worm gear clamps
• Ideal for custom naturally aspirated air intake builds
• Manufacturer Part Number: 9771

The Spectre 9741 Intake Coupler Reducer provides a reliable transition for custom air intake configurations. This adapter is engineered to connect a 4-inch outside diameter (OD) component or intake tube to a 3.5-inch OD component. Its 3-inch length ensures enough surface area for a secure, leak-free seal on non-pressurized intake tracts.

Constructed from durable black PVC, this coupler is built to withstand engine bay temperatures while maintaining its structural integrity. It is an ideal solution for adapting air filters, mass airflow sensors, or custom tubing. Please note that this component is designed for the vacuum side of the intake and is not suitable for pressurized turbocharger or supercharger discharge applications.

• Connects 4-inch OD components to 3.5-inch OD intake tubes
• Overall length: 3 inches
• Material: Heat-resistant black PVC
• Includes two stainless steel worm gear hose clamps
• Manufacturer Part Number: 9741

The Spectre 8791 90-degree elbow coupler is engineered for custom air intake configurations where engine bay space is restricted. This component allows for an immediate 90-degree bend, connecting a 3-inch outside diameter component to either another 3-inch tube or a 2.5-inch tube using the included removable reducer.

• Fits 3-inch outside diameter intake tubes and components
• Includes 2.5-inch removable reducer for versatile fitment
• 90-degree bend accommodates tight clearances in the engine compartment
• Constructed from durable black PVC material
• Includes two stainless steel worm gear hose clamps for a secure seal
• Manufacturer Part Number: 8791

Note: This coupler is designed for use on the vacuum side of air intake systems. It is not rated for pressurized applications such as turbocharger or supercharger discharge outlets.

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 select 2005-2014 Subaru Forester, Impreza WRX, Legacy GT, and Outback XT models. This Mishimoto silicone throttle body hose is engineered to replace the failure-prone factory rubber hose, providing a more durable connection between the intercooler and throttle body.

Constructed from 100-percent high-grade silicone, this hose features internal heat-resistant embedded fibers that prevent expansion under high boost levels and withstand the extreme temperatures of the engine bay. The direct-fit design ensures a precise seal and can be installed in under an hour using standard hand tools.

• Direct fit for Subaru turbo models (2005-2014)
• 100% silicone construction for maximum durability
• Internal heat-resistant fiber reinforcement for high-pressure stability
• Red finish for a customized engine bay appearance
• Manufacturer Part Number: MMHOSE-SUB-ITBRD

Fitment:

• 2005-2006 Subaru Legacy GT
• 2005, 2007-2009 Subaru Legacy GT Limited
• 2006-2009 Subaru Legacy GT spec.B
• 2005-2006 Subaru Outback XT
• 2005-2009 Subaru Outback XT Limited
• 2009 Subaru Forester XT
• 2009-2010 Subaru Forester XT Limited
• 2011-2013 Subaru Forester XT Touring
• 2008-2014 Subaru Impreza WRX
• 2010-2014 Subaru Impreza WRX Limited
• 2009-2014 Subaru Impreza WRX Premium

Fits select 2005-2014 Subaru Forester XT, Impreza WRX, Legacy GT, and Outback XT. This Mishimoto silicone throttle body hose is engineered to replace the prone-to-fail factory rubber unit that often cracks and leaks over time, leading to boost leaks and poor engine performance.

Constructed from four layers of 100-percent silicone with heat-resistant embedded fibers, this hose offers significantly improved durability and heat tolerance compared to OE. As a direct-fit component, it bolts directly to the factory throttle body and intercooler, ensuring a secure seal under high-pressure conditions. Installation typically takes less than one hour with basic hand tools.

• Manufacturer Part Number: MMHOSE-SUB-ITBBL
• Material: 100% silicone with internal fiber reinforcement
• Direct-fit replacement for stock rubber hose
• Increased resistance to heat and pressure
• Blue finish

Fits select 2005-2014 Subaru Forester, Impreza WRX, Legacy, and Outback models.

The Mishimoto Silicone Throttle Body Hose is engineered to replace the factory rubber unit, which is prone to degradation and boost leaks over time. Designed as a direct-fit upgrade, this hose ensures a secure, airtight seal between the intercooler and the throttle body, maintaining consistent intake pressures for turbocharged Subaru engines.

• Constructed from 100% silicone with heat-resistant embedded fibers for superior pressure and temperature tolerance.
• Direct-fit replacement for factory components, requiring no trimming or modification.
• Durable multi-layer design prevents hose expansion under high boost levels.
• Typical installation time is under one hour using basic hand tools.
• Manufacturer Part Number: MMHOSE-SUB-ITBBK

Mishimoto Heat Resistant Silicone Ducting is engineered to withstand the extreme thermal demands of performance and racing environments. This 3-inch diameter flexible hose provides a reliable solution for channeling ambient air to critical vehicle components to prevent overheating and maintain peak performance.

Constructed from high-grade silicone, this ducting is versatile enough for custom brake cooling setups, air intake routing, or providing fresh air to the driver's compartment during endurance events. The 12-foot length ensures ample material for complex routing through the engine bay or chassis.

• Diameter: 3 inches
• Length: 12 feet
• Material: Heat-resistant silicone
• Applications: Brake cooling, air intakes, and cabin ventilation
• Manufacturer Part Number: MMHOSE-D3
• Includes Mishimoto Lifetime Warranty

Mishimoto Heat Resistant Silicone Ducting is engineered to withstand high temperatures while effectively channeling cool air to critical vehicle components. This 2-inch diameter, 12-foot long ducting provides a versatile solution for managing thermal loads in performance and racing applications.

Constructed from durable, multi-layer silicone, this hose is designed to be routed to brake systems, air intake assemblies, or the driver’s compartment to maintain optimal operating temperatures. Its flexible structure allows for reliable routing through complex engine bays or around suspension components without collapsing or degrading under heat.

• Diameter: 2 inches (51mm)
• Length: 12 feet (3.66m)
• Material: High-grade heat-resistant silicone
• Applications: Brake cooling, air intakes, and cockpit ventilation
• Manufacturer Part Number: MMHOSE-D2
• Mishimoto Lifetime Warranty included

Build a more reliable charge air system with the Mishimoto DuraCore 4in Straight Silicone Coupler. Designed for custom intercooler piping and high-performance fabrication, this boot provides a rugged connection point that withstands the extreme environments of forced induction engine bays.

This coupler features proprietary DuraCore technology, a specialized synthetic material used for the innermost layer. Unlike standard silicone which can degrade when exposed to blow-by, DuraCore provides superior resistance to fuel and oil, preventing the softening and eventual blowouts that cause boost leaks. The outer structure is manufactured from five layers of high-grade silicone reinforced with heat-resistant embedded fibers to maintain shape and seal under high pressure.

• Manufacturer Part Number: MMDCC-40SBK
• Coupler Type: Straight
• Inlet/Outlet Diameter: 4.0 inches
• Construction: 5-ply silicone with heat-resistant embedded fibers
• Inner Layer: DuraCore synthetic material for oil and fuel resistance
• Compatibility: Universal fitment for 4-inch intercooler and intake piping

Build a more reliable intercooler system with the Mishimoto DuraCore 4in Straight Hump Silicone Coupler. Engineered for custom fabrication and high-boost applications, this coupler serves as a critical link in your charge piping, providing the flexibility needed to absorb engine movement and vibration without compromising the seal.

Every Mishimoto DuraCore boot features a specialized synthetic inner layer that provides superior resistance to heat, pressure, fuel, and oil compared to standard silicone. This prevents the degradation and blowouts often seen in demanding environments. The 5-layer construction includes heat-resistant embedded fibers for maximum structural integrity under extreme pneumatic loads.

• DuraCore technology offers a specialized inner layer for industry-leading resistance to fuel and oil
• 5-layer silicone construction with heat-resistant embedded fibers for high-pressure durability
• Hump-style design allows for increased flexibility to compensate for engine vibration and chassis flex
• Ideal for custom intercooler piping kits and high-performance forced induction builds
• Manufacturer Part Number: MMDCC-40HBK
• Inlet/Outlet Diameter: 4.0 inches

Engineered for high-performance fabrication, the Mishimoto DuraCore™ 4-inch 90-degree silicone coupler is built to handle the extreme heat and pressure of custom intercooler systems. The core of this boot features DuraCore™ technology, a synthetic inner layer that provides significantly better resistance to fuel, oil, heat, and pressure compared to standard silicone. This prevents the degradation and blowouts often seen in high-boost applications.

• Diameter: 4.0 inches (102mm)
• Angle: 90-degree bend
• Construction: 5-ply silicone reinforced with heat-resistant embedded fibers
• DuraCore™ Tech: Synthetic inner lining resists fuel and oil to prevent leaks and structural failure
• Versatility: Ideal for routing charge pipes in tight engine bays or connecting custom intercooler piping
• MPN: MMDCC-40A9BK

Whether you are plumbing a high-boost diesel application or a custom turbocharged build, this reinforced boot provides the structural integrity needed to maintain secure connections under the most demanding conditions.

The Mishimoto DuraCore™ 4-inch 45-degree silicone intercooler coupler is engineered for high-performance custom charge pipe fabrication. Designed to be the strongest link in your forced induction system, this boot utilizes proprietary DuraCore™ technology to withstand the rigors of high-boost environments.

The innermost layer features a specialized synthetic material that provides superior resistance to heat, pressure, fuel, and oil compared to standard silicone. This prevents degradation, leaks, and blowouts over time. Each boot is constructed with five layers of silicone and reinforced with heat-resistant embedded fibers to maintain structural integrity under extreme thermal and mechanical stress.

• Bore Diameter: 4 in (102mm)
• Angle: 45-Degree
• Construction: 5-layer silicone with heat-resistant embedded fibers
• Inner Liner: DuraCore™ synthetic material for oil and fuel resistance
• Function: Connects intercooler piping and intake components
• Manufacturer Part Number: MMDCC-40A4BK

When fabricating a custom intercooler system, the reliability of your connections is critical. The Mishimoto DuraCore 3.5in Straight Silicone Intercooler Coupler is engineered as a heavy-duty link for charge pipe assemblies, designed to withstand the extreme thermal and pressure demands of high-performance forced induction systems.

This boot features proprietary DuraCore technology, a synthetic material used for the innermost layer that provides superior resistance to fuel, oil, and heat compared to standard silicone. This prevents the material degradation that typically leads to leaks and blowouts. The outer construction consists of five layers of silicone embedded with heat-resistant fibers for maximum structural integrity under high-boost conditions.

• Inner Diameter: 3.5 inches (89mm)
• Configuration: Straight Coupler
• Construction: 5-layer silicone with heat-resistant embedded fibers
• DuraCore technology provides an oil- and fuel-resistant inner lining
• Engineered to prevent leaks and blowouts in high-pressure environments
• Manufacturer Part Number: MMDCC-35SBK

Build a more resilient custom charge pipe system with the Mishimoto DuraCore™ 3.5in Straight Hump Silicone Intercooler Coupler. Designed for high-performance fabrication, this coupler features a hump-style configuration that allows for greater flexibility, absorbing engine movement and vibration that could otherwise lead to cracked welds or pipe separation.

The defining feature is DuraCore™ technology—a synthetic inner layer that provides exceptional resistance to oil, fuel, and extreme heat. Unlike standard silicone which can degrade over time when exposed to blow-by, DuraCore™ maintains its structural integrity to prevent leaks and blowouts under high-boost conditions. The coupler is constructed from five layers of silicone with embedded heat-resistant fibers for maximum pressure retention.

• Inner Diameter: 3.5in
• Type: Straight Hump Coupler
• Construction: 5-layer silicone with heat-resistant embedded fibers
• DuraCore™ Technology: Superior resistance to oil, fuel, and degradation
• Design: Hump allows for engine movement and vibration absorption
• Manufacturer Part Number: MMDCC-35HBK

When fabricating custom intercooler piping, the connections are often the weakest link. The Mishimoto DuraCore™ 3.5-inch 90-degree silicone coupler is engineered to withstand the extreme temperatures and high-boost pressures that cause standard silicone boots to fail. This heavy-duty coupler features a 90-degree bend, making it ideal for routing charge pipes through tight engine bays or around cooling components.

At the heart of this boot is DuraCore™ technology—a specialized synthetic inner layer that provides superior resistance to heat, pressure, fuel, and oil. Unlike standard silicone, which can degrade or swell when exposed to oil blow-by, DuraCore™ maintains its structural integrity to prevent leaks and blowouts. The outer construction consists of five layers of silicone reinforced with heat-resistant embedded fibers for maximum durability under load.

• 90-degree configuration for complex piping layouts
• 3.5-inch (89mm) inner diameter
• DuraCore™ inner layer resists fuel, oil, and degradation
• Five layers of silicone with heat-resistant fiber reinforcement
• Prevents boost leaks and boot failure in high-performance applications
• Manufacturer Part Number: MMDCC-35A9BK

The Mishimoto DuraCore™ 3.5in 45-Degree Silicone Intercooler Boot is engineered for high-performance fabrication and custom intercooler piping systems. Designed to be the strongest link in your charge air system, this coupler utilizes DuraCore™ technology—a specialized synthetic inner layer that provides superior resistance to heat, pressure, fuel, and oil compared to standard silicone materials.

Each boot is manufactured from five layers of silicone with heat-resistant embedded fibers to prevent leaks and blowouts under high-boost conditions. The 45-degree configuration offers the flexibility needed for routing charge pipes through tight engine bays while maintaining structural integrity and a secure seal.

• DuraCore™ Technology: Synthetic inner layer resists degradation from fuel and oil for a longer service life.
• Reinforced Construction: 5 layers of silicone with embedded heat-resistant fibers for maximum durability.
• High-Pressure Performance: Engineered to withstand extreme boost pressures without expanding or failing.
• Specifications: 3.5-inch inner diameter with a 45-degree bend for custom layouts.
• Manufacturer Part Number: MMDCC-35A4BK

The Mishimoto DuraCore 3.5" to 4" Transition Silicone Intercooler Coupler is engineered for custom intercooler piping systems that demand maximum reliability under high-boost conditions. This heavy-duty transition boot allows fabricators to securely connect 3.5-inch and 4-inch diameter charge pipes, providing a durable bridge in your induction system.

Every DuraCore™ boot features a specialized synthetic inner layer that offers superior resistance to heat, pressure, fuel, and oil compared to standard silicone. This prevents the structural degradation and leaks that typically lead to mid-race blowouts. The coupler is built from five layers of high-grade silicone with embedded heat-resistant fibers, ensuring it maintains its shape and seal in the most demanding engine bay environments.

• DuraCore™ Technology: Synthetic inner lining resists oil and fuel degradation to prevent leaks and extend boot life.
• 5-Ply Construction: Five layers of silicone reinforced with heat-resistant fibers for exceptional burst strength.
• Transition Design: Seamlessly adapts 3.5" OD piping to 4" OD components.
• High-Pressure Rated: Engineered to withstand the extreme temperatures and vibration of turbocharged and supercharged builds.

• Inlet Diameter: 3.5 in
• Outlet Diameter: 4.0 in
• Material: 5-Ply Reinforced Silicone with DuraCore™ Inner Layer
• Manufacturer Part Number: MMDCC-3540BK