Exhaust - Downpipe - High-Flow Cat (034) for B5-B6 A4 1.8T
Complete drop-in upgrade; will bolt up to any stock/stock-fit turbo and stock/stock-fit exhaust. Professionally assembled in-house, TIG-welded and backpurged.
- Full 304 stainless construction.
- TIG welded and backpurged.
- CNC machined flanges.
- Factory correct oxygen sensor and exhaust hanger placement.
- Dyno proven horsepower and torque gains! (We have seen gains of over 26WTQ and 15WHP on our dyno on stock turbo tunes.)
- Smog tested.
FITMENT: Direct bolt-in for OEM cat-back exhaust, or aftermarket cat-back exhaust systems designed to fit with the OEM catalytic converter. Will fit 4Motion/quattro and FWD B5/B6 Audi A4 1.8T, and B5/B5.5 Volkswagen Passat 1.8T models equipped with Manual, Tiptronic, or CVT transmissions. Please select your transmission type from the dropdown below.
Gasket & Hardware Kits **NOW INCLUDED!!!** - We have pieced together all of the necessary parts to make swapping out your factory catalytic converter a breeze. This kit includes turbo outlet and cat-to-midpipe gaskets, as well as all necessary nuts and bolts for a complete install. Oxygen Sensor Spacer **NOW SOLD SEPARATELY**- This spaces out the secondary (rear) O2 sensor to remove MIL or CEL issues caused by removing the factory catalytic converter. Professionally manufactured from stainless steel, not cobbled together by hand like some other products on the market. Spacer will add approximately 1.7" to the height of the sensor. 034Motorsport oxygen sensor spacers feature a flare seal seat, so no sealing washer or gasket is required.
Select your transmission type from the dropdown below.
FOR OFFROAD USE ONLY
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Off-road use ONLY: THIS PRODUCT IS FOR RACING COMPETITION ONLY AND IS NOT LEGAL FOR USE IN HIGHWAY OR STREET VEHICLES OR OTHER NON-RACING COMPETITION OFF-ROAD VEHICLES. BY PURCHASING THIS PRODUCT YOU ACKNOWLEDGE ITS INTENDED USE.
Warning: This product may contain a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm.
Learn More: www.p65warnings.ca.gov