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4 Series F33 435i Convertible (N55)
Made from hand crafted
This plenum can be used with the OEM airbox or any aftermarket intake system
Not only will this diffuser help with the aerodynamics of the M2
Emissions legal in all 50 States
ARM S58 DOWNPIPES G8x M2/M3/M4 Catless or Catted?:Catless 4 Series F33 435i ConvertibleHIGHLIGHTS Increase Power and Torque Faster Turbo Spool Exotic Exhaust Sound SS304 Stainless Steel PROFILE The ARM S58 Downpipes increase power and torque on your S58 powered BMW while unleashing exotic sounds from your tailpipes. The ARM S58 downpipes are one of, if not the best all around hardware upgrades for the G8X platform. The ARM S58 downpipes improve throttle response throughout the RPM range while stepping up the exhaust note, all without
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