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- Untd. Performace Catless Downpipe - Audi A3 2.0T TT Mk2 - VW GOLF 2.0T MK5 MK6
- Untd. Performance Catless After Downpipe - Porsche Panamera 971 2.9T 2018
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- One Piece – 100% Mandrel Bent and TIG welded
- 200 Cell – High Flow Cat
- With Heat Shield
- Constructed of top quality 304 Stainless Steel
- Bolt-on installation
- Includes Gaskets & Bolts
- Improved exhaust note
- Improved exhaust flow
- Increased HP and Torque
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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.
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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. -
- Full stainless steel 304 material pipes
- Laser CNC cut head and exhaust flanges
- CNC cut three into one, precision slip fit collectors
- Mandrel bends
- Fully TIG welded
- Direct Bolt on to the left hand drive B8 3.0T S4 and S5
- Perfect fitment with both the factory and all cat back exhaust systems
ONLY FOR 3.0T TFSI SUPERCHARGED ENGINE
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Unleash the full potential of your EA839-powered Audi with the Untd. Performance Catless Downpipe for B9 S4, S5, and SQ5. Built to eliminate factory restrictions and maximize exhaust flow, this downpipe transforms your 3.0T V6 into a sharper, harder-pulling performance machine. Expect faster turbo spool, a more aggressive exhaust tone, and real-world power gains—perfect for enthusiasts running tunes, upgraded intakes, or chasing maximum performance on and off the track.
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Unlock the true potential of your Audi B9 S4 or S5 with the Untd. Performance Catless Downpipe for the 3.0T engine. Designed to eliminate the restrictive factory catalytic converter, this catless downpipe allows for maximum exhaust flow, reducing turbo lag, improving throttle response, and delivering more power throughout the rev range. Ideal for enthusiasts pushing the limits of their Audi, whether for street use or high-performance track builds.
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- Thickest Test Pipes in the world
- One Piece – 100% Mandrel Bent and TIG welded
- Constructed of top quality 304 Stainless Steel
- Bolt-on installation
- Includes Gaskets & Bolts
- Improved exhaust note
- Improved exhaust flow
- Increased HP and Torque
- Compatible with OEM Downpipes
ONLY FOR 3.0T TFSI SUPERCHARGED ENGINE
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Take your EA839-powered Audi B9 S4 or S5 to the next level with the Untd. Performance Catless Downpipe w/ Heat Shield. Designed for maximum power and thermal management, this upgrade removes the restrictive factory catalytic converter and adds integrated heat shielding for cooler engine bay temps and reliable long-term performance. Whether you’re building a weekend weapon or prepping for the track, this downpipe is the foundation of your power setup.
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Unlock more power and a more aggressive exhaust note with the Untd. Performance Catted Downpipe, engineered for Audi 3.0L supercharged V6 engine found in the A6, A7, S4, S5, and SQ5. This high-flow downpipe is designed to replace the restrictive factory catalytic converter, reducing backpressure, improving turbo efficiency, and enhancing throttle response while keeping your ride emissions-compliant. Perfect for enthusiasts seeking more performance with a refined sound.
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- Increased air flow
- Powder Coated in Black With Wrinkles
- Can be used with OEM or the Untd. Performance intercooler
- 1/8” NPT Water/Meth injection port w/ plug
- Direct bolt-on installation
- Optimized flow geometry
- Includes all hardware necessary
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Product Info and Spec:
Bar & Plate Construction
Core Size: 8″x7.5″x3.5″
2″ Inlet & OutletHighlights:
– Working Pressure: 5~50PSI
– Pressure Drop:2~5psi@35psi; 0.2~0.5psi@15psi
– Hot Air Temperature: 32°F~302°F (0°C~150°C)
– Material: 100% Aluminum, Bar and Plate Design, Polished
– Construction: Machine Cut and Stamped, Hand Welded -
- Max Horsepower Capacity: 300-600hp
- Core Length: 22″
- Core Height: 16″
- Core Thickness: 2.5″
- Inlet: 2.30″ / Outlet: 2.60″
- End to End Length: approximately 40″