Setup: Borla Catback exhaust + Nuespeed carb legal intake. Still have my cats. No drone at all with this exhaust. Really ...
I've upgraded my car with a Borla Catback exhaust and a Nuespeed carb legal intake, keeping the catalytic converters intact.
Although the S650-generation Mustang EcoBoost leaves much to be desired in terms of aural pleasure, Borla is much obliged to improve things by means of a cat-back exhaust. Prices kick off at $1,338.99 ...