i havent had a problem at all so far and i have hooker LT's and holley high flow cats with 3" to the back yeah you could get "caught" but ive never heard of someone getting pulled over and a COP looking under the car and being like yeah... thats definatly not stock length.. I just know the guy who does my smog and he checks it off for visual inspection and it actually passes with flying colors on the actual emissions portion even though i have a high lift cam and custom tune with only 2 cats and 2 of the O2's deleted...
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2001 SS Camaro
LS1 T56
MTI Air lid, LS6 Intake, Ported TB,SLP Cam, Ti Retainers, Comp Springs, Manly Pushrods, Double roller Chain, SLP Pump, ASP underdrive pulley, BMR Strut tower brace, BMR Sub-frame connectors, BMR Rear control arms, Hooker Longtube headers, 3exhaust, QTP Cutout. Koni 4/4's Strano Springs, Vredestein 18/9.5 in front and 18/10.5 in back | 
