Supersprint Headers, BMW Performance Exhaust, Euro Airbox Intake Review
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08-20-2012, 03:30 PM
Drives: 2017 F46 B48; 2011 E91 N52
Join Date: Apr 2010
If you could go back, would you have left the stock cats on?
What about the SuperSprint Headers w/ Cats?
And power-wise, does the car feel more powerful?
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