| | 09 R56 aftermarket exhaust
I am looking to change my exhaust and after researching I narrowed it down to either the milltek or the alta cat back system.
I would like an opinion of others which one sounds better also as I live in the states would I have any problems with inspections, and should I get either non resonated or resonated if someone could tell me the difference of the resonated.
Also should I install a cold air intake before or after the exhaust install? I am going with the alta cold air intake. Any info will be greatly appreciated. I would also like to hear from UK and euro mini owners for there opinions too. Thank you