just installed mac off road h-pipe to flowmaster two chambers, it puffs a little smoke if i rev it and let off, is this just unburned gas cause of 93 octane and no cats or do i need to get rid of it, it has just unbder 83,00 miles?
No, more than likely it's burning off the oily residue left inside the new exhaust parts from the manufacturing process. Should go away after the exhaust is used a little more and fully heated up a few times.
No, more than likely it's burning off the oily residue left inside the new exhaust parts from the manufacturing process. Should go away after the exhaust is used a little more and fully heated up a few times.