jmac72187

Will longtubes pass emmisions if I have high flow cats or stock cats?

I am only going to get shorty's if they will ruin my emmisions even with cats. I know LT's are better, but I want to somewhat legal.

bransdaman78

No, they will not pass visual if the guy is a dik, longtubes themselves are illegal. However i dont have cats, and I pass every year, just find a hole in the wall joint, I have never had any problems

jmac72187

I am not really worried about a visual. In Massachusetts, they put hoses on your exhaust pipes to check your emmisions. I don't want to fail that.

rainydayracing

The longtubes will not blow a failing code - only o/r mid pipes will (no cats).

jmac72187

Hmm... now I have to decide.

rainydayracing

Longtubes are a hard install. Don't bother with the shorties - go longtube or go home.

muzikp

Mine passes the sniffer with long tubes and a catted x-pipe.

BoanHed

Long tubes have no significant effect on the actual emissions.
The reason that they are illegal is that it is against federal law to remove or relocate the cats in ANY way.
The thing is, most places that have sniffer tests, also have visual inspections. Its a gamble.
I am going to have to agree with Brandsdaman78..... Find a small "licensed" shop to do the inspection for you.... and tip.

sprostang

They don`t do a sniffer test on cars after 95. They just hook up under the dash to the computer. As long as you don`t have the CEL on, you pass. As long as the rear 02`s are off your fine.

bransdaman78

well the sniffer varies from state to state, but ill bet 50 bucks you pass with out cats, these newer cars run alot cleaner