Originally Posted by idrift4wd
PSH...not even a question.
half the price of the exhaust and... 1000X better hp gains. maybe more.
Hmm, I don't know....
I've had a JB4 for a while now and yes, it's great BUT...I just had a loaner '12 z4 35i with DCT and a gurgling/popping exhaust and I after only 4 days I almost would be willing to trade the extra power for that sound.