Akrapovic Downpipe (SS) for BMW X5 M (E70) and X6 M (E71) porsche-cayenne--9pa----1-gen--turbo-esr3181428 We have found the M177

We have found the M177 engine stock performance numbers vary from the baseline figures claimed by Mercedes-Benz

In addition

• GLS 550 | 4

Combined with RENNTECH's ECU software and stainless steel headers

Akrapovic Downpipe (SS) for BMW X5 M (E70) and X6 M (E71) porsche-cayenne--9pa----1-gen--turbo-esr3181428 We have found the M177Akrapovic Downpipe (SS) for BMW X5 M (E70) and X6 M (E71) For ultimate tuning potential, additional weight reduction, and a great racing sound, we offer stainless steel down pipes without cats. These high flow down pipes require ECU reprogramming and are a perfect fit with the Evolution performance exhaust system. When installing Akrapovi aftermarket optional down pipes with sports catalytic converters or without catalytic converters, which are