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Evolve 3" catless turbo downpipes for the N54 1M | 135i | 335i in T301 Stainless steel
Left Side Carbon Tube with integrated MAF sensor mount
and the application of RKP’s design philosophy started at the RKP M2 Carbon Fiber roof
lightweight
performance or sound issue
Evolve LHD 4-1 Stepped Medusa Manifolds - BMW E39 M5 M240i Evolve 3" catless turbo downpipesFOR LEFT HAND DRIVE CARS ONLY The largest major restriction point of the E39 M5 S62 V8 engine is the exhaust manifolds headers. Changing the exhaust system without changing the headers gives no gain in power. In fact, changing the header back system gives little if any power gain! The factory items are very poorly designed and looking at them it is clear funds were saved in the department. No other M Power car has ever had headers as poorly designed