We designed this extra light, double walled jet pipe to allow the use of bigger engines ( Increased throughput 10 % ). To allow this extra efficiency, the pipe is equipped with our own inlet and substitutes the original CARF carbon inlet and the closed duct system. The pipe has our SIDE MOUNT SYSTEM , the inlet is predrilled. Compared to the original CARF pipe, our pipe weighs just 470 grams ( approx. 185 grams weight saving )