CXRacing 3" Downpipe for 240SX S13 S14 S15 RB20 RB20DET RB25 RB25DET Single Turbo This downpipe only works with upgeade single turbo, does NOT fit factory turbo. This downpipe fits CXRacing's top mount manifold and turbo perfectly, for other manifold, it might be off. This downpipe ends close to the transmission, you need to fabricate/modify it to fit your exhaust system