Know that these are just mufflers I have a few questions...
1. What is the performance gains?
2. Is there an additional option from BMW to do the entire system Cat Back? with out losing the cats?
3. Will installing the BMW PE Void my CPO being that I am doing the install?
4. Is there any cutting required?
5. would anyone req another exhaust over this one, keeping in mind my car is CPO and I want to remain quiet.
Thanks every one, I have done many searches on this but not too much luck.