Emissions issues with Long tubes and High flow cats?

Jims07Screw · 06-23-2009

Need some imput from all you folks that have added Long tube headers with high flow cats. Any issues with passing emissions. Want to add these items but dont want to deal with the emissions failing any help would be appreciated.

duckbubbles · 06-23-2009

My almost stocker failed emissions with just a Tillman's tune (O2 sensors turned off).

Frank

Snake Pliskin · 06-23-2009

I don't think it's possible to pass with long tubes in any state that is fairly tight.

jonh · 06-23-2009

I have roush supercharger steeda cai 2.57 pulley kooks headers & hi flow cats. had one emission tune from a tuner and check engine p0420 p0430 codes. tuner said nothing he could do.Called JDM he sent email tune passed ny emission with flying colors .So yes if they just check obd when doing inspection your good to go If they do sniff test I don,t know

**stlwagon** · 06-23-2009

Long tube headers are technically illegal on any pollution-controlled vehicle. It's not a state law, it's a federal law.

Andywalls · 06-23-2009

Quote:

Originally Posted by stlwagon

Long tube headers are technically illegal on any pollution-controlled vehicle. It's not a state law, it's a federal law.

Federal laws are just so overrated...

**stlwagon** · 06-23-2009

Quote:

Originally Posted by Andywalls

Federal laws are just so overrated...

That's why I just ignore them.