V8 RPA BOV Conversion (M177/M178 engine) DB9 Have a shorter insulator and

Have a shorter insulator and retains less heat at the tip end are only required when higher boost levels cause increased cylinder head temperatures

About Spark Plug Heat Range:

Matches factory or aftermarket exhaust systems

Price is for one airbox Left Hand Side (in direction of travel) only

V8 RPA BOV Conversion (M177/M178 engine) DB9 Have a shorter insulator andTake your AMG V8 twin turbo (C63, E63, GLC63, GT, GLE63, GLS63) to the next level with the ZAC Motorsport V8 RPA Mechanical BOV Conversion. The stock electronic diverter valves bleed boost and fail under high pressure, robbing your engine of performance and muffling the soundtrack. Our RPA system replaces them with twin fully mechanical valves for uncompromised boost control, sharper throttle response, and the addictive turbo blow off sound. Boost