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longtube headers with cats??

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Old 07-09-2010, 09:02 PM
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Default longtube headers with cats??
looking at puting longtube headers on my truck but with cats.
wanted to see if anyone gots this setup and any pics of location of cats.
thanks!
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Old 07-09-2010, 09:14 PM
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Dynatech LT's & cats with Y pipe. Mine is a '06 Z71, these are the only ones I have handy. They both mount up just forward of the trans crossmember.

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Old 07-09-2010, 09:33 PM
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man that looks good! i was looking at pacesetters but dont know how much i would have to set the cats back..
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Old 07-09-2010, 09:36 PM
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Thanks, I'm not sure on the Pacesetters I got all of the Dynatech stuff at the same time. Expensive as hell but it all fit, I had the AIR injection tube on the #2 primary cut off and welded over, then sent them out to Jet Hot. Satisfied with the setup so far.
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Old 07-09-2010, 09:56 PM
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I got the Dynatechs w/cats as well. Pics: http://s2.photobucket.com/albums/y28...jects/Exhaust/
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Old 07-10-2010, 01:40 PM
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here are some pics of how i did mine





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Old 07-10-2010, 02:57 PM
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I have StainlessWorks LT's and catted y-pipe, direct bolt in system, I'm extremely happy with them I recently gutted the cats though, but need to leave them on there for NJ visual inspection.



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Old 07-10-2010, 05:44 PM
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Any of you guys need to pass emissions tests with your setups? I'm kind of torn, I have to e-test every 2 years and i'm going to upgrade headers, but I figure, the stock manifolds and catted Y is probably the best thought out system for clean emissions, which is making me lean towards off-road y, and then come e-test time, just swap to factory cast iron manifolds and cats. Ideally I'd love to change them once and never worry about them again, but if places like ARH or kooks just put "high flow cats" to satisfy visual inspections then I'd be pissed to spend extra money to not pass emissions.
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Old 07-10-2010, 08:14 PM
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Originally Posted by SILVERADO11
here are some pics of how i did mine


















that a nice setup, thats what am looking to do to my truck.
are all long tube headers like yours on the driver side one?
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Old 07-10-2010, 08:30 PM
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Originally Posted by Preston129
Any of you guys need to pass emissions tests with your setups? I'm kind of torn, I have to e-test every 2 years and i'm going to upgrade headers, but I figure, the stock manifolds and catted Y is probably the best thought out system for clean emissions, which is making me lean towards off-road y, and then come e-test time, just swap to factory cast iron manifolds and cats. Ideally I'd love to change them once and never worry about them again, but if places like ARH or kooks just put "high flow cats" to satisfy visual inspections then I'd be pissed to spend extra money to not pass emissions.
As quoted from the post right above yours...

Originally Posted by budhayes3
I recently gutted the cats though, but need to leave them on there for NJ visual inspection.
Our emissions is the OBDII plug in, so as long as the monitors have run and there are no codes, and the equipment is on there for the visual inspection, I'm good to go. I just passed last week, for the second time since I've installed this setup
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