328ci exhaust question
Looking to upgrade my exhaust on my 328ci and add a little power. Interested in the AA Gen 3 High Flow, but a friend told me straight pipes will get the same sound.
Question is will the straight pipes add any hp?
Also what other exhausts would give a deeper sound and power increase?
“Speed has never killed anyone, suddenly becoming stationary… that’s what gets you.” - Jeremy Clarkson