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M3/M4 MID PIPE PERFORMANCE ADVANTAGES
72 curved veins and directional vents measuring 17mm wide
belt alignment through pulley offsets
MicroGard MGA10268
the APR system retains the critical PCV vent path on the muffler pipe for necessary for proper engine operation
APR Valve Stem Caps - Black SHOCKS M3/M4 MID PIPE PERFORMANCE ADVANTAGESStylish valve stem caps in black Leaving no detail untouched, we've added APR Valve Stem Caps to the lineup! Sold as a set of 4 aluminum caps, each has an APR logo engraved on the face, which some believe may add horsepower*. Black. *HP gains are unconfirmed. Features Classy design dresses up your valve stem caps Black finish APR logo on top Aluminum
