Replace your heavy stock cat back exhaust pipes with a Borla Touring Catback exhaust setup. Lose weight, gain power, improve sound and save money. 1k+ new, $550 for the whole set. I can piece it out.
PM me if interested.
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m235i, JB4 Stage II Map 2, cat delete, CAI
2012 5.0, GH Dyno Tuned 422rwhp 388rwtq (sold)
2011+ Borla Catback exhaust
Threaded Mode