RK Autowerks S63 Catless Downpipes – F10/F12 M5 & M6

Description The RK Autowerks catless downpipes eliminate the restriction from the catalytic converters, allowing for quicker turbo spooling and better throttle response. The lowered back-pressure results in significant horsepower and torque gains that can be felt immediately. Having been designed using state of the art 3d scanning and prototyping ensures that all of our downpipes fit the customers car just like OEM downpipes do.Stainless O2 sensor bung locations are precision mounted in the factory locations.Downpipe Features: – 3.00″ overall diameter – T304 Stainless Steel construction, using mandrel bends – Precision TIG welded joints – Heavy-Duty Stainless V-Band/Exhaust flanges – Factory O2 locations retained with Stainless Steel bungs – Reduced underhood temperaturesModels Supported: – 2012-2016 | M5 | F10 – 2012-2016 | M6 Coupe, Gran Coupe, Convertible | F06 F12 F13 WARNING:Cat-less Downpipes are for OFF ROAD USE ONLY. Using these will result in a check engine/service engine soon light. Federal and many state laws prohibit the removal, modification or rendering inoperative of any part or element of design effecting emissions or safety on motor vehicles used for transporting persons or property on a public street or highway.