Brondex downpipes for BMW X3M F97 / X4M F98The BRONDEX Downpipes for BMW X3M F97 and X4M F98 (3. 0 S58 engine). If you are looking to add more power to your BMW S58 X3M F97 X4M F98 and make it more interesting and brutal you definitely need: Downpipes made by BRONDEX. The two main options available are BMW X3M F97 X4M F98 S58 catless Downpipes and Downpipes with 200 Cells Catalytic Converters Improved Exhaust Sound; Improved Power; Complete high quality stainless steel (304); Double sided

Construction with high-quality titanium tubes

400 rpm and 9

increasing horsepower and torque

European stainless steel (AISI 304)

A specially designed perforated manifold tube on the valve side eliminates streaming without any compromise to the pressure pulse distribution

0 hp) and 47

enhanced sound

the exhaust also increases power by 4

which provides exciting acoustic feedback when shifting through the gears

including the housing of the valves and collectors from the central muffler to the tailpipes

it offers power and torque gains of 25

Brondex Downpipes for Audi RSQ8 / SQ8 / SQ7 4