Straight pipes
#4
Senior Member
Its a little more than that. You still have resonators, catalytic converters and anything else that is in the way. For sure the term straight is anything but that.
#6
Senior Member: Will
having striaght pipes is ILLEGAL because you are supposed to have a muffler. However, depending on where you live, its not that big of a deal. If you have an F-150 that has 4 cats cutting the second two off will not affect the o2 sensors or warnings lights and make the truck louder