E39 M5 PLENUM PLATESE39 M5 PLENUM PLATES CALL FOR S H PRICING CALL FOR PRICING (626) 452 8321 The RK E39 M5 plenum plates were developed to remedy the boost leaks found on the M5. Users observed pressure loss under WOT conditions at the throttle body and manifold seal. With billet aluminum plenum plates the rubber seal is now replaced ensuring no leaks. The plenum plates are CNC machined and precision fit to ensure they fit on your M5. E39 M5 PLENUM PLATES The RK E39 M5
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