The engineers at ECS Tuning have designed a direct fit dual exhaust x-pipe cross section to balance exhaust pulses and increase expulsion of exhaust gases from the engine.
Installation of the Center X-Pipe increases the factory exhaust system note exponentially.

Click HERE for your ECS Audi B9 S4 X-Pipe Exhaust Upgrade!



Installation is a breeze and can be easily performed with the vehicle lifted on proper jack stands in your own driveway.
Our installation PDF, walks you through the install to ensure a perfect fit to your OEM exhaust.
We've even included a complete set of clamps to make sure everything is properly installed without leaks.

Click HERE for your ECS Audi B9 S4 X-Pipe Exhaust Upgrade!