Check-Engine Light free! An emissions-friendly approach to exhaust upgrades!
Buy Integrated Engineering Software from 9/3/26 - 9/30/26 for a chance to win your Software for FREE!
Upgrade the tone of your B9 RS5 2.9T exhaust with a easy-to-install, bolt on downpipes with resonator deletes for your factory cat back exhaust.
10X Entries Into Our F80 M3 Sweepstakes
Brand:
ES#:
4818337
Mfg#:
005723LA01KT
In Stock
ON SALE!
SAVE 10%
$565.99
This product was last offered at the strikethrough price on 06-13-2026
Deliver up to 577HP with a matching IE Stage 2 Tune and turn your 2.5T into an all-out power monster!
Buy Integrated Engineering Software from 9/3/26 - 9/30/26 for a chance to win your Software for FREE! *Does not include Y-pipe adapter (IEEXCQ3) - Necessary if mating to stock cat-back system*
Designed as a drop-in replacement for the restrictive factory catalytic converters - offers increased horsepower and torque throughout the powerband, reduced turbocharger lag, improved throttle response, and enhanced exhaust note!
2X Entries Into Our F80 M3 Sweepstakes *This catalyst requires a Stage 2 Racing Use Only Remap to eliminate any check engine lights due to removal of the factory catalyst*
Quick and easy way to add horsepower and an aggressive sound! 304 stainless steel 2.5" tubing.
Buy Integrated Engineering Software from 9/3/26 - 9/30/26 for a chance to win your Software for FREE!
T304 seamless stainless, mandrel bent tubing downpipe to rid your TT of the restrictive factory downpipe
*Coupe models only, Will not fit roadster - A check engine light may occur due to high flow catalytic con
Upgrade your downpipe with a performance aftermarket downpipe to reduce restrictions and increase performance with a hearty improvement to your exhaust and turbo sound.
Lifetime Replacement
