Emissions

[2015_blackbeauty]

Hi guys! Just joined and I haven't really navigated the site to see if there was already a thread on this or not, but I have a question regarding long tube headers and emmissions. I'm really wanting the sound and power increase that comes with longtubes I just don't know that even with a catted y pipe that I could pass emmissions. Just wanting to know if it is possible at all to pass emissions with that setup? I also live in Tennessee if that helps anybody at all with my question. 

[CamGTP]

Is it a sniffer test or just a OBD2 test?

[2015_blackbeauty]

They do both where I'm at

[CamGTP]

It could be possible but they just need to be quality cat converters. The highflow race cats will do enough to act like a resonator and decrease the exhaust smell but their cell count is likely way too low to pass the emissions sniffer because it will allow too many hydrocarbons through the exhaust still.

[2015_blackbeauty]

So in other words, kooks green cats?

 

[CamGTP]

Or you could source two cats and have them welded into a cheaper set of headers. It may be cheaper than the crazy cost of Kooks with a catted y-pipe.