Long Tube Headers vs HFC vs Test Pipes vs Art Pipes

DarkJak

Long tube headers will replace our crappier stock headers and cats. Essentially like short tube headers + test pipes, but with a longer length before the tubes merge. This should give the biggest gain (best exhaust flow) and most likely save the most weight, but install is the most complicated. Won't process exhaust fumes.

HFC's will replace stock cats with lower cell count ones to allow freer exhaust flow.

Test pipes will take out the cats completely, so your exhaust won't be processed and the fumes would smell bad, but since it's just a smooth tube, flow would be better than HFC's.

Art pipes are basically resonated test pipes to help reduce rasp, but the rest of the function should be pretty similar.