I tried searching around for this but the search ain't working for me. Does anyone know of any long tube headers that are fifty-state legal? Has anyone ever welded A.I.R. tubes on to their LT's? Is it possible to do?

 

Welcome aboard thirdgen.org.

I don't know of any available long tubes with the A.I.R. tubes already installed. If you're handy with a MIG welder, then of course it's possible.

 

I was looking into the same thing before deciding I will be going with Dyno Don shorties and dual cats. You can purchase Hedman Air tubes and weld in an O2 bung and should be good.
S/F
Lthrneck

http://store.summitracing.com/partde...0&autoview=sku

 

If you home-fab A.I.R. tubes on your long tubes, technically they still aren't legal, since the manufacturer never paid the government big bucks to get them smog certified.

 

True, but how many "inspectors" know exactly which headers are "legal" when it comes to the AIR tubes?

 

Thanks guys, and thanks lthrneck for that link. The main thing I'm worried about is passing emissions. I was talking to my friend and he's got a guy he pays off to pass him, so it's not a huge deal if i can't legally pass. It would just be nice. Is there an efficiency benefit to having the AIR on the headers? Will I get worse gas mileage w/o them? Does it noticeably effect performance? I'm not going to be building a monster here.

 

summit has LT headers with smog tube ports, i dont know the numbers but its easy to find them on there

 

Bout half the hooker 2138's I see on ebay have the AIR hookups

Nice LTs

Im using a set right now

 

I can't find any such animal.

I didn't think the 2138's did either. The Holley site lists them as "Emissions Code 3-Amber; Legal Only For Off-Highway/Racing Use".

 

They dont off summit that Ive seen, I watch ebay for them and usually they are 50/50 what are pre made for AIR and what are not