-
This Untd. Performance Braided flex downpipe features 3″ tapered to 2.5″ piping to achieve horsepower gains across the entire RPM range on 2.7L Audi S4/RS4 (B5) and A6/Allroad (C5). Catalytic converter is removed to eliminate restrictions on exhaust flow.
The unique hybrid design of the inlet flanges enables direct bolt-on for stock K03 turbo, upgrade K04 turbo and custom built RS6 turbo. -
- Improve Engine Output and Efficiency, We recommend a stage 2 map for optimal performance
- 200 Cell High Flow Cat
- Large diameter and free flow tubing for unrestricted flow, Making the exhaust air flow smooth, Designed for high-performance racing
- Made of High-Quality 16-gauge T-304 Stainless Steel with Computerized Mandrel-Bends
- All joints are TIG welded to prevent cracking and wear
- CNC Machine Flange for MAX Strength and Durability
-
- Improve Engine Output and Efficiency, We recommend a stage 2 map for optimal performance
- 200 Cell High Flow Cat
- Large diameter and free flow tubing for unrestricted flow, Making the exhaust air flow smooth, Designed for high-performance racing
- Made of High-Quality 16-gauge T-304 Stainless Steel with Computerized Mandrel-Bends
- All joints are TIG welded to prevent cracking and wear
- CNC Machine Flange for MAX Strength and Durability
-
Boost power, throttle response, and exhaust flow on your VW Golf GTI or GLI MK7/MK7.5 with the Untd. Performance 3.5” 200 Cell High-Flow Catted Downpipe. Designed for the EA888 Gen 3 2.0T engine, this premium stainless-steel downpipe improves turbo spool, deepens exhaust tone, and delivers significant performance gains — all with a direct bolt-on fit and emissions-friendly 200-cell catalyst. Perfect for tuned and performance-focused builds.
-
If you’re serious about power, sound, and turbo response, the Untd. Performance 3.5″ Catless Downpipe is the ultimate exhaust upgrade for your Audi RS3 or TTRS 8V. Designed for the EA855 2.5T (DAZA/DNWA) engine, this monster 3.5” catless downpipe is built to remove restriction, reduce backpressure, and give your 5-cylinder the voice — and performance — it truly deserves. Whether you’re pushing Stage 2 or going all-out with a big-turbo setup, this is the foundation of a proper high-boost build.
-
Take your VW Golf GTi MK7/MK7.5 2.0T to the next level with the Untd. Performance 3.5″ Catless Downpipe. Designed for serious enthusiasts who want to unlock maximum turbo performance and a more aggressive exhaust sound, this downpipe replaces the restrictive factory catalytic converter with a high-flow, straight-through design. The 3.5″ diameter piping allows for improved exhaust flow, reducing backpressure and turbo lag while increasing power across the rev range. If you’re looking to elevate your Golf GTi’s performance for both street and track use, this catless downpipe is the perfect upgrade.
-
- High Quality Stainless Steel
- CNC Machined Flanges
- TIG Welded for Strength and Durability
- Clamps for Installation Included
- OEM Style Flex Pipe
- Perfect Fitment Guaranteed
- 3″ With reducer to fit stock or aftermarket catbacks
-
Take your Audi A3, S3 8V or VW Golf R MK7/MK7.5 to the next level with the Untd. Performance 3.5″ Catless Downpipe, built for drivers who want maximum flow, maximum sound, and maximum performance. Designed for the 2.0L EA888 TSI engine, this downpipe delivers faster spool, bigger power gains, and a raw, turbocharged sound that sets your AWD hot hatch or sedan apart from the pack.
-
The Untd. Performance 3.5″ Catted Downpipe for Audi A3/S3 8V 2.0T and VW Golf R Mk7 is a premium performance upgrade designed to maximize the capabilities of your turbocharged engine. This downpipe features a high-flow catalytic converter, optimizing exhaust flow while maintaining emissions compliance, making it an essential modification for enthusiasts seeking enhanced performance without sacrificing legality.
-
Maximize the performance of your Mercedes-Benz C63 AMG with the Untd. Performance 3.5″ Catless Downpipe. Engineered for the M177 4.0L Bi-Turbo V8, this catless downpipe is designed to eliminate the restrictive factory catalytic converters, allowing for improved exhaust flow and reduced backpressure. With the larger 3.5″ diameter, this downpipe ensures optimal turbo efficiency, quicker spool times, and a massive increase in horsepower and torque—transforming your W205 C63 AMG into a track-ready performance machine.
-
Unlock the full power potential of your Mercedes-Benz C63 AMG with the Untd. Performance 3.5″ Catless Downpipe with Shield. Specifically designed for the w205 M177 4.0L Bi-Turbo V8 engine, this high-performance downpipe eliminates the restrictive factory catalytic converters, allowing for increased exhaust flow, reduced backpressure, and quicker turbo spool. Paired with integrated heat shielding, this downpipe delivers not only improved performance but also enhances the driving experience with a more aggressive exhaust note and optimal engine temperatures.
-
The Untd. Performance 3.5-Inch Catless Downpipe for the Mercedes-Benz AMG W205 C63 is a high-performance upgrade designed to maximize exhaust flow and unleash the full potential of your vehicle. This catless downpipe is engineered to deliver significant gains in horsepower and torque, providing an exhilarating driving experience.
Showing 25–36 of 204 results