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Alta exhaust vs. Borla Sport. Which is louder? (R53, 2006)
I have an Alta exhaust on my 2006 MCS. It is the one with the newer smaller resonator (louder than the previews resonator style). I've read that the Borla Sport (aggressive) exhaust is one of the louder exhausts. Can anyone tell me if the Borla Sport is even louder than the current Alta exhaust?
Unfortunately, many posts and posted videos of the Borla don't talk about the 2 different types and instead just say "Borla".