Installing a high flow downpipe is a quick way to pick up horsepower and torque. A downpipe will also give your Audi B6 S4 4.2L V8 a sportier tone. All Milltek downpipes feature a bolt-on design and mate seamlessly with your factory or most aftermarket exhausts.
*Note: Different part numbers for Automatic/Tiptronic & Manual vehicles.
Product Details:
-Highest quality aircraft-grade 2.5" stainless steel
-Sharper throttle response
-Substantial weight savings
-Precision quality
-Reduced back pressure for max performance - no loss of low end torque!
-Great Sound even with factory exhaust!


Milltek Part Numbers
SSXAU289 - 2.5" Cat Delete Pipes for Manual
SSXAU290 - 2.5" Cat Delete Pipes for Automatic/Tiptronic