As long as the muffler or change is behind the cats then no it doesn't affect the warranty. If your told that a free flowing muffler caused a problem, one have them prove that the muffler caused the problem and 2 remind them of the Magnusen Moss act.Do the aftermarket mufflers/exhaust affect the factory warranty ?
I'm only quoting this post so that it comes up again:lol5:
I am in Canada, that was the nail in the coffinAll standard bolt on's are free shipping to anywhere in the lower 48.
The race systems on the other hand:dunno:
The TRD system is nice too, but the BAmuffler system is full customizable and all material used to produce the BAmuffler systems are twice as thick:lol5: