yellow93lx

I could not pass the tail pipe test with no cats so I had to put some hi flow cats on and it passed with without any problems. I do not have a smog pump on car and was not sure if I would have to hook it back up for the cats to help, but by the numbers below you can see what a change they made. I tryed changing the timing and it would change the numbers, but would not get close to passing.

Before new Cats
Hydrocarbons Vehicle Results: 1,058.00 ppm Failed
Carbon Manonoxide Vehicle Results: 1.55 % Failed

After new Cats
Hydrocarbons Vehicle Results: 35.07 ppm Passed
Carbon Monoxide Vehicle Results: 0.05 % Passed

CantStopTheFox...

I have all the smog B.S on my car...with UPR X-Pipe with High Flow Cats.........And YES, it is because I live in California

One Bad MOFO

would still having all the smog equipment hooked up make my car come up with a check engine light after I installed o/r h pipes?

Stanpower

I run BBK high flow cats that have a crossover (Xpipe) I'm happy with them..............

86 5.0L

I dont have any smog crap and live in Cali

85GTsleeper

wait how! wtf! are you paying people off or did you find a loop hole cuz if you found a loop hole i must know!