Fits 1994-2002 Dodge Ram 2500 and 3500 Base models with the Cummins turbo diesel engine.

This MBRP 4-inch aluminized steel down-pipe provides a high-flow path from the turbocharger to the rest of the exhaust system, specifically designed to reduce backpressure. By increasing exhaust flow capacity, this pipe helps lower Exhaust Gas Temperatures (EGTs) and improves overall turbo response, making it an essential upgrade for towing or performance applications.

Each down-pipe is jig-manufactured to ensure precise fitment and accurate alignment with factory mounting points. Constructed from heavy-duty aluminized steel, it offers a reliable, cost-effective solution for optimizing the exhaust geometry of your second-generation Dodge Ram diesel.

• 4-inch diameter for maximized exhaust flow
• Constructed from heavy-gauge aluminized steel
• Jig-manufactured for consistent, accurate fitment
• Helps reduce EGTs and improves performance
• Direct replacement for the restrictive factory down-pipe

Fits 2003-2007 Ford F-250 and F-350 Super Duty trucks (6.0L).

The MBRP turbo down pipe is engineered to eliminate the primary bottleneck in your exhaust system. By replacing the restrictive factory pipe with a 3.5-inch mandrel-bent unit, this kit significantly increases exhaust flow directly from the turbo outlet. This reduction in backpressure leads to lower Exhaust Gas Temperatures (EGTs), faster turbo spooling, and improved throttle response. Each kit is jig-manufactured to ensure a precise, repeatable fit for a straightforward installation process.

• 3.5-inch tubing diameter maximizes exhaust volume
• Mandrel-bent construction maintains constant diameter through every curve
• Lowers EGTs and improves engine efficiency
• Jig-manufactured for an accurate, bolt-on fitment
• Noticeably enhanced exhaust tone

Fits 2016-2018 Ford Focus RS (2.3L).

Maximize exhaust flow and reduce backpressure on your EcoBoost engine with the Stainless Works 3-inch High-Flow Catted Downpipe. This performance upgrade replaces the restrictive factory pipe with mandrel-bent 3-inch tubing designed to optimize scavenging and turbo response. To ensure long-term durability and ease of installation, the assembly includes a heavy-duty flex joint to manage engine movement and integrated hangers that utilize factory mounting locations.

Engineered for versatility, this downpipe features a precision-machined 2-bolt flange at the turbocharger and a flared outlet. This "Factory Connection" design allows the downpipe to mate seamlessly with either the OEM catback exhaust or the Stainless Works performance catback (MPN: FCRS16CB).

• 3-inch diameter mandrel-bent stainless steel construction
• High-flow catalytic converter for improved exhaust velocity
• Integrated heavy-duty flex joint and hangers
• Precision 2-bolt turbo flange
• Flared outlet for compatibility with factory connection points
• Works with OEM or Stainless Works (FCRS16CB) catback systems

The HKS Stainless Steel Race Front Pipe (3306-SN007) is a high-performance exhaust component engineered for dedicated track and competition use. Designed to maximize exhaust gas velocity and minimize backpressure, this front pipe utilizes high-grade stainless steel construction to withstand the extreme thermal loads of racing environments.

• Premium stainless steel construction for superior durability and heat resistance
• Mandrel-bent tubing ensures smooth, unrestricted exhaust flow
• Precision engineered to optimize scavenging for turbocharged racing applications
• Lightweight design compared to standard cast components
• Manufacturer Part Number: 3306-SN007

Please Note: This is an HKS Race Part. It is intended solely for use on purpose-built race cars and must never be used on a motor vehicle operated on public streets, roads, or highways.

Fits 2013-2015 Audi RS5 Base and Cabriolet (4.2L).

AWE Non-Resonated Downpipes are engineered to replace the factory post-cat resonated sections, unleashing a louder and deeper exhaust note from the B8 RS5's high-revving 4.2L V8. Constructed from CNC mandrel-bent 2.5-inch T304L stainless steel, these downpipes provide a direct-fit solution that mates perfectly to either the factory exhaust system or an existing AWE exhaust. When combined with the AWE Track Edition Exhaust, these downpipes convert the system into the more aggressive Track Extreme configuration.

• CNC mandrel-bent 2.5-inch T304L stainless steel construction
• Directly replaces factory post-cat resonated downpipes
• Produces a more aggressive, deep exhaust tone
• AWE No Check Engine Light (CEL) Guarantee
• AWE Perfect Fitment Guarantee
• Lifetime Exhaust Warranty
• Manufacturer Part Number: 3220-11012

Fits 1994-1997 Ford F-250 and F-350 trucks (V8-7.3L).

The aFe ATLAS 3-inch steel down-pipe is designed to eliminate the restrictions of the factory exhaust system, improving flow and reducing backpressure for better turbocharger response and overall engine efficiency. Built from durable steel tubing, this down-pipe is engineered to handle the high heat and demands of the 7.3L Power Stroke engine.

• 3-inch diameter steel construction for increased exhaust flow
• Formed V-band outlet flange provides a precise, leak-proof seal
• Includes high-quality band clamps for a secure and hassle-free installation
• Designed to utilize factory mounting locations for a straightforward bolt-on fit
• Manufacturer Part Number: 49-03101

Fits 2003-2006 Mitsubishi Lancer Evolution.

The Invidia Turbo Outlet, also referred to as an O2 housing, is designed to significantly reduce backpressure by replacing the restrictive factory component. By streamlining exhaust flow directly from the turbocharger, this upgrade allows for faster spool-up and improved throttle response. It is an essential modification for enthusiasts looking to optimize the efficiency of the CT9A platform's forced induction system.

• High-flow design reduces exhaust turbulence and backpressure
• Constructed from durable stainless steel for maximum heat resistance
• Precision-machined flanges ensure a secure, leak-free seal to the turbo and downpipe
• Direct bolt-on replacement for the OE housing
• Manufacturer Part Number: HS03ML8TOL

Fits 2008-2019 Subaru WRX and STI.

Enhance the exhaust flow and turbocharger efficiency of your Subaru with the Invidia Downpipe featuring an integrated High Flow Catalytic Converter. This performance component replaces the restrictive factory downpipe, significantly reducing backpressure to help the turbo spool faster and improve overall engine response. Engineered as a direct-fit upgrade, it balances increased exhaust volume and power potential with the inclusion of a high-flow catalytic substrate to help manage emissions.

• Integrated high-flow catalytic converter reduces restriction compared to the OEM unit
• Mandrel-bent tubing construction ensures smooth, consistent exhaust gas transitions
• Precision-machined flanges provide a secure, leak-free seal to factory mounting points
• Specifically engineered for 2008-2019 Subaru WRX and STI (EJ/FA engines)
• Manufacturer Part Number: HS08SW1DOCB

Fits 1989-1993 Dodge W250 and W350 4X4 models equipped with the 5.9L Cummins diesel engine.

Improve your exhaust flow and reduce exhaust gas temperatures (EGTs) with the Diamond Eye 4-inch aluminized turbo-back downpipe. This performance upgrade replaces the restrictive factory component with precision CNC mandrel-bent tubing. By maintaining a consistent diameter throughout the bends, this downpipe minimizes backpressure and allows your 5.9L engine to breathe more efficiently. Designed specifically for first-generation Dodge 4WD configurations, it provides the clearance and durability needed for heavy-duty performance.

• Part Number: 220100
• Tubing Diameter: 4" OD
• Material: Aluminized Steel
• Construction: CNC Mandrel-Bent
• Configuration: Turbo-Back Single Downpipe
• Compatibility: 4X4 Drive Only

Vehicle Fitment:

• 1989-1993 Dodge W250 Base (5.9L)
• 1989-1993 Dodge W350 Base (5.9L)

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

Improve your engine's efficiency and exhaust velocity with the aFe Twisted Steel Down Pipe. This system is engineered to replace the restrictive factory downpipe, utilizing dual high-flow catalytic converters to maximize flow without sacrificing durability. Designed as a direct bolt-on component, it connects to factory mounting points and works seamlessly with the factory exhaust system without requiring modifications.

Built to withstand the rigors of both daily driving and off-road use, this downpipe is constructed from mandrel-bent 409 stainless steel tubing that transitions from 2-1/2 inches to 2-1/4 inches. The assembly is 100% MIG-welded for maximum strength and features heavy-duty laser-cut mild steel flanges to ensure a secure, leak-free seal over the life of the vehicle.

• Fits 2016-2021 Toyota Tacoma (V6-3.5L)
• Mandrel-bent 2-1/2" to 2-1/4" 409 stainless steel tubing
• Dual high-flow catalytic converters for maximum exhaust flow
• Heavy-duty laser-cut mild steel flanges for a durable, leak-free seal
• 100% MIG-welded for superior strength and longevity
• Direct bolt-on installation requires no modifications
• Manufacturer Part Number: 48-46012-HC

Fits 2015-2016 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD (6.6L LML Duramax).

The Wehrli Custom Fabrication (WCFab) 3" Stainless Steel Downpipe is designed to eliminate the restrictive, crushed factory downpipe found on 2015.5-2016 LML engines. By increasing exhaust flow directly from the turbocharger, this upgrade improves throttle response and helps maintain lower exhaust gas temperatures (EGTs). This downpipe is specifically engineered for trucks equipped with the 3-bolt flange exhaust connection and is compatible with the factory turbocharger or factory-style drop-in replacements.

• 3" diameter high-flow stainless steel construction
• Designed for 3-bolt flange exhaust connections
• Direct replacement for GM part numbers 12674630 and 12655717
• Includes high-temperature heat wrap and stainless steel clamps
• No ECM tuning required for installation
• Manufactured in the USA
• Manufacturer Part Number: WCF100704

Note: For 2011-2014 LML models with a V-band style connection, please see WCFab part number WCF100704.

Fits select 2011-2015 Chevrolet Silverado and GMC Sierra 2500 HD/3500 HD trucks (6.6L LML Duramax).

The Wehrli Custom Fabrication 3-inch Stainless Steel Downpipe is designed to replace the restrictive, crushed factory downpipe on LML Duramax engines. This high-flow replacement improves exhaust scavenging and reduces backpressure at the turbocharger. This specific model is designed for use with factory or factory-style drop-in turbochargers that utilize a V-band connection; it is not compatible with 3-bolt flange style exhausts.

• 3-inch diameter stainless steel construction for corrosion resistance and durability
• V-band style flange for a secure, leak-free connection
• Includes thermal heat wrap and heavy-duty clamps
• No ECU tuning or recalibration required for installation
• Direct replacement for GM part numbers: 12643610, 12638304, 12643214
• Note: If your vehicle requires a 3-bolt style downpipe, use MPN: WCF100705
• Made in the USA
• Manufacturer Part Number: WCF100704

Fits select 2004-2010 Chevrolet Silverado and GMC Sierra 2500 HD/3500 HD (6.6L).

Replace the restrictive, crushed factory turbo down pipe on your 6.6L Duramax Diesel V8 with this high-flow 3-inch stainless steel upgrade from Wehrli Custom Fabrication. Designed for 2004.5-2010 LLY, LBZ, and LMM engines, this down pipe improves exhaust flow and reduces heat soak thanks to the included pre-installed heat wrap. It is compatible with the OEM turbocharger or factory-style drop-in units and requires no aftermarket tuning for installation.

• Diameter: 3 inches
• Material: Stainless Steel
• Finish: Pre-installed heat wrap for superior thermal management
• Compatibility: 6.6L Duramax (LLY, LBZ, LMM)
• Direct Replacement for GM Part Number: 98050150
• Installation: No tuning required
• Manufacturing: Made in USA
• MPN: WCF100703

Package Includes: 3-inch stainless steel downpipe, pre-installed heat wrap, and clamps.

Fits 2004-2007 Dodge Ram 2500 and 3500 (5.9L Cummins).

The Wehrli Custom Fab (WCFab) 4" Turbo Down Pipe is engineered specifically for trucks equipped with a 2nd Gen style exhaust manifold and a high-mount S400 turbocharger. This bolt-on solution simplifies the installation of an aftermarket S400 by mating the turbo directly to your factory exhaust system. The upper flange features a 4.6" diameter designed for standard S400 flat exhaust housings, while the lower flange connects to the OEM v-band flange on the exhaust pipe, eliminating the need for cutting or custom fabrication.

• Direct Fit: Designed to work with the factory exhaust v-band flange (reuses OEM v-band clamp).
• High-Heat Protection: Finished in a black high-temperature ceramic coating and includes additional heat wrap with clamps.
• S400 Compatibility: Includes a 4" V-band clamp specifically for the S400 turbo connection (4.6" upper flange).
• Premium Construction: Mandrel-bent 4" tubing, Made in the USA.
• Manufacturer Part Number: WCF100262

Note: Also compatible with 2003-2004 models that have updated their exhaust system front pipe to the 2004.5-2007 style.

Fits select 2017-2025 Chevrolet Silverado and GMC Sierra 2500 HD/3500 HD (6.6L).

Improve exhaust flow and reduce restriction on your L5P Duramax by replacing the factory "crushed" down pipe with this high-flow 3.5-inch alternative from Wehrli Custom Fabrication. This catalyst-back component is designed to bolt directly to the DOC outlet flange behind the OEM turbocharger and mate with the factory exhaust system front pipe using the standard 4-bolt flange connection. To ensure durability and heat management, each pipe comes finished in a high-temperature black ceramic coating with pre-installed heat wrap.

• 3.5-inch high-flow down pipe construction
• High-temperature black ceramic coat finish
• Pre-installed heat wrap for superior thermal management
• Integrated bungs for factory sensors
• Catalyst-back design is emissions compliant
• No tuning required for installation
• Made in the USA
• Manufacturer Part Number: WCF100129

Fits select 2011-2015 Chevrolet Silverado and GMC Sierra 2500 HD/3500 HD models (6.6L LML).

The Wehrli WCF100121 3in Down Pipe is engineered to replace the restrictive, crushed factory component, significantly improving exhaust flow from the turbocharger. Designed for use with factory turbochargers or factory-style drop-in replacements, this down pipe utilizes a V-band style connection. It features a durable black ceramic coating to manage under-hood temperatures and comes with specialized heat wrap for maximum thermal protection.

Compatibility Note: This down pipe is designed for the 2011-2014 style exhaust system with a V-band connection. While it fits 2015 LML models, please note that 2015.5 and newer trucks equipped with a 3-bolt flange exhaust system will require a 2011-2014 style exhaust for this part to fit, or the alternative 3-bolt flange down pipe (PN: WCF100705).

• Main Pipe Diameter: 3.0 inches
• Inlet/Outlet Style: V-Band Connection
• Finish: Black Ceramic Coating
• Includes: 3" Down Pipe, Heat Wrap, and Clamps
• Manufacturer Part Number: WCF100121

Fits select 2004-2010 Chevrolet Silverado and GMC Sierra 2500 HD, 3500, and 3500 HD models equipped with the 6.6L Duramax engine (LLY, LBZ, and LMM).

Eliminate the flow bottleneck in your exhaust system by replacing the restrictive, crushed factory component with this Wehrli 3-inch down pipe. Designed for high-performance heat management, this pipe features a high-temperature black ceramic coating to reduce under-hood soak and protect surrounding components. It is engineered for a precise fit with the factory turbocharger or any factory-style drop-in turbo upgrade.

• 3-inch mandrel-bent tubing for maximum exhaust flow
• High-temperature black ceramic coating
• Compatible with factory and factory-style drop-in turbos
• Includes heat wrap and stainless steel clamps
• Manufacturer Part Number: WCF100120

Fits 2008-2014 Subaru Impreza WRX and WRX STI (including Limited, Premium, and Special Edition models).

The Turbo XS Catted Downpipe (WS08-DPC) is designed to maximize exhaust flow and significantly reduce backpressure compared to the factory unit. By streamlining the path for exhaust gases, this downpipe allows for faster turbo spool and increased power throughout the RPM range. It features an integrated high-flow catalytic converter to help maintain emissions compliance while still providing the performance benefits of a high-flow exhaust system.

• Manufacturer Part Number: WS08-DPC
• Direct bolt-on installation for factory turbo locations
• Integrated high-flow catalytic converter
• Durable stainless steel construction for long-term corrosion resistance
• Designed for optimized exhaust gas velocity and reduced turbo lag

Vehicle Fitment:

• 2008-2014 Subaru Impreza WRX (Base, Limited, Premium)
• 2008-2014 Subaru Impreza WRX STI (Base, Limited, Special Edition)

Fits 2002-2008 Subaru Impreza WRX, WRX STI, and Forester XT models. This Turbo XS high-flow catted downpipe replaces the restrictive factory unit to optimize exhaust flow directly from the turbocharger turbine housing.

Designed to reduce backpressure and improve turbo spool-up, this downpipe features an integrated high-flow catalytic converter. This allows for increased performance while maintaining a catalytic element in the exhaust stream. The WS02-DPC is a direct-fit component engineered to handle the higher thermal loads of turbocharged flat-four engines.

• Manufacturer Part Number: WS02-DPC
• Integrated High-Flow Catalytic Converter
• Optimized piping diameter for improved exhaust gas velocity
• Direct replacement for factory downpipe

Vehicle Fitment:

• 2002-2007 Subaru Impreza WRX / WRX Limited / WRX TR
• 2004-2007 Subaru Impreza WRX STI / STI Limited
• 2004-2008 Subaru Forester XT / XT Limited / XT Premium / Sports 2.5 XT

Fits 2010-2018 Ford Taurus SHO (3.5L).

Improve exhaust flow and turbo response on your V6 Ecoboost with the Stainless Works 2.5-inch catted downpipe system. These downpipes are engineered as a high-performance replacement for the restrictive factory units, utilizing CNC mandrel-bent tubing to ensure a smooth, unobstructed exhaust path. Constructed from premium 304 stainless steel, this system provides maximum corrosion resistance and is TIG welded for long-term structural integrity.

Designed to bolt directly to the factory connection points, these downpipes feature catted leads that balance increased flow with durability. This kit is proudly made in the USA and is backed by a manufacturer's lifetime warranty, ensuring performance that lasts the life of the vehicle.

• 2.5-inch diameter CNC mandrel-bent tubing
• High-grade 304 stainless steel construction
• TIG welded for superior strength and durability
• Integrated high-flow catalytic converters
• Bolts to factory connection points for straightforward installation
• Made in the USA
• Manufacturer Lifetime Warranty
• Manufacturer Part Number: TA10ECODPCAT

Fits 2015-2020 Ford Mustang EcoBoost and EcoBoost Premium.

Improve turbocharger efficiency and exhaust flow with the Stainless Works M15EDPCAT downpipe. This 3-inch diameter system replaces the restrictive factory unit with a high-flow catted lead pipe, designed to reduce backpressure and enhance the acoustic profile of the 2.3L EcoBoost engine. Engineered for a direct fit, this downpipe utilizes the factory connection point for a seamless installation process.

• Manufactured from premium 304 stainless steel for long-term corrosion resistance
• Expertly TIG welded for maximum joint strength and durability
• Full 3-inch mandrel-bent tubing ensures consistent diameter and optimal flow
• Integrated high-flow catalytic converter to balance performance and filtration
• Designed specifically to mate with the factory exhaust connection
• Backed by Stainless Works' lifetime guarantee
• Manufacturer Part Number: M15EDPCAT

Vehicle Fitment:

Fits 2017+ Ford F-150 Raptor (3.5L).

Enhance the performance and exhaust flow of your Raptor with the Stainless Works 3-inch Downpipe system. This kit replaces the restrictive factory turbo adapters and stock catalytic converters with CNC mandrel-bent 304 stainless steel tubing and integrated high-flow cats. Designed for a direct factory connection, this system allows for a seamless installation with your OEM cat-back exhaust while significantly reducing backpressure and improving turbo response.

• 3-inch diameter CNC mandrel-bent tubing for optimal flow
• Includes High-Flow Catalytic Converters to replace restrictive stock units
• Replaces factory turbo adapters for maximum performance
• Constructed from 304 stainless steel for superior corrosion resistance
• Precision TIG welded for maximum strength and durability
• Mill finish stainless steel
• Proudly Made in the USA
• Lifetime Warranty
• Manufacturer Part Number: FTR17DPCAT

Fits select 2016-2018 Ford F-150 models (3.5L).

Improve exhaust flow and turbo response on your EcoBoost with the Stainless Works FT16ECODPCAT downpipe system. These 3-inch downpipes feature high-flow catalytic converters and include a Y-pipe designed specifically to bolt up to the flanged factory connection point. Each component is TIG welded for maximum durability and constructed from 304 stainless steel to provide superior corrosion resistance in harsh environments.

All tubing is CNC mandrel-bent to maintain a consistent diameter throughout the bends, minimizing backpressure. This kit is a direct-fit solution for owners looking to upgrade their exhaust path without custom fabrication.

• 304 stainless steel construction for long-term corrosion resistance
• 3-inch CNC mandrel-bent tubing for optimal exhaust velocity
• Integrated high-flow catalytic converters
• Y-pipe included for flanged factory connection
• TIG welded for superior strength
• Proudly made in the USA
• Manufacturer Part Number: FT16ECODPCAT
• Lifetime warranty included

Fits 2022-2023 Ford Maverick.

Improve exhaust flow and turbocharger efficiency on your 2022-2023 Ford Maverick with this premium downpipe from Stainless Works (MPN: FMAVDP). Designed to replace the restrictive factory component, this downpipe reduces backpressure to allow for quicker turbo spool-up and improved exhaust scavenging, providing a more responsive driving experience.

• Precision-engineered specifically for the 2022-2023 Ford Maverick chassis
• Constructed from high-quality stainless steel for long-term durability and corrosion resistance
• Direct replacement for the factory downpipe assembly
• Optimized for improved exhaust flow and sound
• Manufacturer Part Number: FMAVDP

Fits 2015-2022 Ford Mustang EcoBoost and EcoBoost Premium (2.3L).

JBA 409 Series stainless steel after-cat down-pipes (mid-pipes) are engineered to increase exhaust flow and provide a more aggressive sound profile for the S550 Mustang platform. Each pipe is constructed from mandrel-bent 409SS tubing to maintain constant diameter through bends, reducing backpressure compared to restrictive factory piping. The exterior is hand-polished to a mirror finish, offering a custom look beneath the vehicle.

This mid-pipe features heavy-duty flanges and factory-style hangers for a secure installation that aligns with OEM mounting points. Please note that installation of this part requires modification to the factory down-pipe. It is intended for closed-course competition use and is not legal for street use on emissions-controlled vehicles in California or states adopting California emissions regulations.

• Manufacturer Part Number: 1748SD
• Material: Mandrel-bent 409 series stainless steel tubing
• Finish: Hand-polished mirror finish
• Integrated O2 sensor provisions where required
• Heavy-duty flanges and factory-style hangers for secure mounting
• Includes high-quality hardware and thorough instructions
• Requires modification of factory down-pipe for installation

Fits 2022-2024 Subaru WRX models.

The Invidia J-Pipe with High-Flow Catalytic Converter is a critical exhaust upgrade for the 2022+ WRX, designed to reduce backpressure and improve turbo spool-up. By replacing the restrictive factory downpipe with a high-flow mandrel-bent system, this J-pipe increases exhaust gas velocity and improves overall engine efficiency. This version includes an integrated high-flow catalytic converter to balance increased performance with emissions considerations.

• Mandrel-bent stainless steel construction for maximum durability and corrosion resistance.
• Integrated high-flow catalytic converter reduces restriction compared to the OEM unit.
• Precision-machined flanges provide a secure, leak-free seal at the turbocharger and mid-pipe.
• Direct bolt-on design utilizes factory mounting locations for a straightforward installation.
• Designed to enhance the exhaust note while improving power delivery across the RPM range.
• Manufacturer Part Number: HS22SW4JPC

Fits 2017-2021 Honda Civic Type R (FK8).

The Invidia 76mm Catted Downpipe (MPN: HS17CTRDPC) is designed to replace the restrictive factory component on the FK8 Civic Type R, facilitating improved exhaust flow and more efficient turbocharger spool-up. By increasing the internal diameter to 76mm, this downpipe significantly reduces backpressure, allowing the K20C1 engine to breathe more freely under boost.

Unlike fully catless options, this unit features an integrated high-flow catalytic converter. This design helps maintain a cleaner exhaust note and manages emissions output while still providing the diameter necessary for high-performance applications. The downpipe is constructed for precise fitment and utilizes factory-style mounting points for a secure installation.

• Large 76mm diameter piping for maximum exhaust gas velocity
• Integrated high-flow catalytic converter reduces restriction over the OEM unit
• Specific fitment for the FK8 chassis and factory turbo flange
• Manufacturer Part Number: HS17CTRDPC

Fits 2015-2016 Subaru WRX Base, Limited, and Premium models equipped with a manual transmission.

The Invidia High Flow Catted Downpipe is engineered to reduce exhaust backpressure at the turbocharger exit, significantly improving throttle response and turbo spool-up compared to the restrictive factory unit. By utilizing a high-flow catalytic converter, this downpipe provides a performance-oriented exhaust path while maintaining a level of emissions compliance that fully catless systems lack.

• Designed specifically for Manual Transmission (MT) applications
• Integrated high-flow catalytic converter for optimized exhaust scavenging
• Mandrel-bent piping for maximum flow velocity and reduced turbulence
• Bolts directly to factory mounting locations for a precise fit
• Manufacturer Part Number: HS15SWMDOC

Fits 2015-2016 Subaru WRX Base, Limited, and Premium models equipped with automatic transmissions.

The Invidia High-Flow Catted Downpipe is engineered to replace the restrictive factory component on the 2015-2016 Subaru WRX (CVT). By utilizing a high-flow catalytic converter, this unit reduces exhaust backpressure and improves turbo spool-up and power delivery while maintaining a more environmentally conscious setup than catless alternatives. This downpipe is specifically contoured to clear the unique housing of the WRX automatic transmission, ensuring a precise fit without interference.

• Direct replacement for the restrictive factory downpipe
• Integrated high-flow catalytic converter for optimized exhaust scavenging
• Engineered specifically for automatic transmission (CVT) clearance
• Manufacturer Part Number: HS15SWADOC

Fits the 2010-2012 Subaru Legacy 2.5GT.

The Invidia Catted Downpipe (MPN: HS10SL1DPC) is a high-performance upgrade designed to replace the restrictive factory downpipe, significantly reducing backpressure and improving turbocharger efficiency. By streamlining the exhaust path immediately following the turbo, this downpipe allows for faster spooling, improved throttle response, and increased power throughout the RPM range.

Constructed from mandrel-bent stainless steel, this downpipe is built to withstand the extreme heat and vibration of high-performance driving. It features a high-flow catalytic converter that balances increased exhaust flow with emissions compliance. This unit is designed for a precise fit, utilizing heavy-duty flanges and mounting points that align with the factory layout for a straightforward installation.

• Specifically engineered for 2010-2012 Subaru Legacy 2.5GT models
• High-flow catalytic converter for improved flow over the OE unit
• Mandrel-bent stainless steel construction for maximum durability and corrosion resistance
• Cast or thick-cut flanges for a leak-free seal at the turbocharger and cat-back interface
• Manufacturer Part Number: HS10SL1DPC