Active Autowerke BMW F80 F82 equal length exhaust mid-pipe (non resonated) for your M3/ M4 The Active Autowerke F88 equal length Mid Pipe was specifically designed to eliminate the highly restrictive nature of the S55 – thus creating optimal exhaust flow and drastically improving performance. Engineered for an exact fit on the BMW M3/M4, the difference in power with this mid-pipe will be noticeable the moment it is installed!
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All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.