Straight Pipe exhaust
Hi, I would like to know if I change the stock exhaust to a straight one plus removing the cat, will I see any noticeable changes in power and response? Also do I need to change any fuel parts like pump, regulator, rail, injectors or even remap the ecu? One last thing, does any one buy second hand parts? Are they worth-it? Thanks a lot.
Finch.
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