a properly tuned length extractor does not compress the exhuast gas from 4 pipes into 1 pipe... the length of primary and secondary pipes are tuned so that the exhaust gas pulse can travel one by one into the pipes according to ur engine firing order...
As an avid DIY-er, I tend to do everything myself including servicing. But I've been having trouble finding the caliper service kit for the R32 caliper. Can someone recommend me a place to buy this...