Just installed my new exhaust, frame guards, skid plate, bark busters, new 168 main and #48 pilot, zip Ty fuel screw. Shit now I'm broke! Anyway i have read about the backfire do to the smog pump and have ordered the kit from TT. I sure hope that this stops that annoying popping. I put a Jardine exhaust slip on. Holy crap thats loud. I should have bought the Q2 instead. Anyone looking for a new pipe? Got one here.