Designed specifically for the Audi RS4 B9 and RS5 B9, the CTS Turbo decat downpipes are perfect replacements for the standard OEM catalysts. These downpipes, expertly handcrafted, not only enhance the 2.9 TFSI engine’s power and performance but also mimic the sound of a supercar!Seamless direct b..

The CTS Turbo decat downpipe designed for the Audi S4/S5 B9 is an ideal substitute for the factory catalyst. Crafted by hand, this test pipe not only maximizes the power and performance of your 3.0 TFSI engine but also enhances your vehicle with the robust sound characteristic of a supercar.Seaml..