Originally Posted by DrtyJersey
I have the BMW PE on my 328xi and I'd like to make it louder. It sounds so good on cold start. How can I go about this?
This is the piping on the exhaust
How long have you had it?? I thought mine was much to modest at first, after a week it sounds MUCH better. I have read that it takes a good month for it to really come to life.
Headers are pretty expensive and probably don't add a ton of performance, but i bet they sound NASTY! The other thing you could do is delete the secondary cats, which I'm sure would not be covered under warranty and might make the exhaust smell funky.