*** NOTE: not for 335Xi models ***
Rennenstil (pronounced rennen-shteel) is German for "race style."
Rennenstil downpipes have been engineered to improve the exhaust flow of turbocharged engines, allowing cars to achieve more of their power potential. They're made in the USA from T-304 stainless steel and they're priced lower than many other downpipes.
Note: This is a "Race Only" product used solely for competition and that eliminates the catalytic converter. It's use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use including recreational off-road use, could be in violation of local, state and federal laws.
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