straight-pipe = NO muffler and NO catalytic converter... lol simple.
EDIT: Its called "straight pipe" for a reason, because there is nothing but Straight PIPE from the engine out to the back or side of the car, wherever it'll exit.
straight-pipe = NO muffler and NO catalytic converter... lol simple.
EDIT: Its called "straight pipe" for a reason, because there is nothing but Straight PIPE from the engine out to the back or side of the car, wherever it'll exit.