Quote:
Originally Posted by Dabaitu
First time I've read there's a cc in that section of the exhaust. Last I knew there was one in the mid- and one in the down-pipe. From your other post your AA system is also droning, which I have to say I wouldn't be a fan of.
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yes it does drone if you installed CATLESS downpipe too not alone of course and not all the time just certain times in hot weather ONLY but given the sound everyone is going crazy what exhaust is making that sexier sound than a stock 335i, no one believes this is coming from a 4 banger.. aside all that maybe what's causing the drone is a leak
