if u can put ur stock cat back on, put it on, cause mine wouldnt pass with the high flow cat. And put ur stock air box too. NEw oil engine, and maybe spark plugs. Also run it around for at least 30 min on the fwy. I did all that and i pass smog, even though i have my pre cats gutted hehehehe
98 svt contour, magnaflows, sho shop intake, sho shop high flow cat, no pre cats, custom cougars short shifter, 3 liter hybird engine woo hoo im happy, and just added a dmd underdrive pulley.
| 
