High Flow Cats
Thread Starter
Burning Brakes
Joined: May 2006
Posts: 876
Likes: 0
From: Evergreen colorado
High Flow Cats
Going to do short and simple. may sound like little po'd here is why.major work done on 04 zo6 8000 miles ,Heads, cam, intake, tb, exhaust on an on, now emissions run car thru hit all numbers less then 40% of max but not Nox 2.6 pass mine hit 4.0 which i was told slight adjustment ok Now mech and builder same person tells me high flow cats must not be working ok why ? well " cats don't last 6 months" huh only have 80 miles on them ,well that doesn't matter even setting not used they quit working. so guess they have expiration date huh? no comment. then why use them no comment. Sorry if sound like jerk just really frustrated this has been an 8 month fight just too get someone to even look now its been in shop going on 4 weeks. Would really welcome any thoughts. As usual should of come here first.
Again Thanks People
Again Thanks People
Thread Starter
Burning Brakes
Joined: May 2006
Posts: 876
Likes: 0
From: Evergreen colorado
Well thought would update this finally tried second set of new hi flo cats ,emission failed again,changed out too more of stock cat, boom passed it without numbers even being close.Yes I thought tuner was nutz well was I wrong
Well it was interesting and was a fight.....but beat it.
Freaking emission.
Thanks Again people
Well it was interesting and was a fight.....but beat it. Freaking emission.
Thanks Again people
Instructor
Joined: Apr 2010
Posts: 165
Likes: 7
From: Newmarket
Well thought would update this finally tried second set of new hi flo cats ,emission failed again,changed out too more of stock cat, boom passed it without numbers even being close.Yes I thought tuner was nutz well was I wrongWell it was interesting and was a fight.....but beat it.
Freaking emission.
Thanks Again people
Well it was interesting and was a fight.....but beat it. Freaking emission.
Thanks Again people
Race Director
Joined: Dec 2004
Posts: 13,760
Likes: 75
From: Haymarket VA
I run hi-flow cats and have never failed emissions. No sniffer test here. When the inspector asked if there were any codes I told him "None that you'll ever see".
Have your tuner setup the PCM to pass the emissions inspection unless they use a sniffer. He should know how to do that.
Have your tuner setup the PCM to pass the emissions inspection unless they use a sniffer. He should know how to do that.
