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Long tube headers

Long tube headers

Postby gmctruckguy [OP] » Jan 20 2012, 9:09am

So if you get long tube headers do you need to change up the rest of the exhaust, do they bolt right in or do you need to change the y-pipe? Can you modify the y-pipe to fit if it doesn't fit?
Let's get some clarification out there.
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Related Topics  Long tube vs. short tube headers   Long tube headers   Long Tube Headers   Long tube headers   Thinking of long tube headers?   4.8 installing long tube headers   Long tube Headers and ORY   Borla long tube headers???   Long tube headers for my 02 5.3 Z71 silverado   Long tube headers for 2012 2500HD?   KOOKS long tube headers installed   Long tube headers and custom tune   Adding long tube headers...do I need cats and mufflers?   Thinking about adding long tube headers and dual exhaust 
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Re: Long tube headers

Postby SSGBulldawg » Jan 20 2012, 10:36am

the Pacesetter LT's that i bought had a y pipe with them, but i also changed from 2 3/4 to 3" what setup are you going to go with?
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Re: Long tube headers

Postby rdss » Jan 20 2012, 11:41am

I think you should be good with most, the only set I have seen that runs a true dual set up is the Stainless Works but you might be okay since you have the 6.2.
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Re: Long tube headers

Postby SMOKE » Jan 20 2012, 12:34pm

:shock: Long tube headers are not going bolt up to the factory pipes. If your looking for a drop in header then look into some shorty headers, much easier install and you save a grand to spend on other mods.
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Long tube headers

Postby gmctruckguy [OP] » Jan 20 2012, 12:55pm

All right! Now we're getting some good information! Keep it coming.
10638His & Hers 2012 Sierra C/C's 6.2L, 4WD, 3.73's, Airaid CAI, Diablo Predator/inTune, Magnaflow Exhaust, Piaa's, 3 1/2" RC Lift, 285 BFG T/A's, Bushwacker Flares, Tuff Country Add-a-Leaf
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Re: Long tube headers

Postby CHEBBY » Jan 20 2012, 1:05pm

The popular opinion seems that shorty headers do not net as much of a performance gain as longtubes. You will need a new Y pipe with longtubes and you can delete the cats with a programmer and an off-road y (ory) pipe.

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Re: Long tube headers

Postby SMOKE » Jan 20 2012, 4:38pm

Yes shorties may leave some numbers on the table but for the small differences its not worth the hassle and extra money on a stock engine, unless your going with FI or heads and cam shorties work well and only take about 90 minutes to install. And deleting the cats isn't worth the 4 hp and having to worry about getting it to pass inspection.
American Racing and Dynatech both offer LT headers with X pipes and you choose the mufflers. Total for a nice LT exhaust is easily over $2K plus install if you pay to have it done. Shorties $400 or less if you don't elect for stainless or coated.
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Re: Long tube headers

Postby rdss » Jan 20 2012, 8:19pm

Dynatech's are a drop in long tube header that attach at the factory cat back..... Stainless Works is not though.
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Re: Long tube headers

Postby SMOKE » Jan 20 2012, 10:41pm

rdss wrote:Dynatech's are a drop in long tube header that attach at the factory cat back..... Stainless Works is not though.

I don't think so...
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Re: Long tube headers

Postby CuppT » Jan 21 2012, 4:26am

I believe ARH and Kooks headers will bolt up to the 6.2L OEM exhaust, but i do not think they will bolt up to the 5.3 OEM exhaust. I could be wrong as i have yet to get my LT's but that is what they claim.


I plan on going with either the Kooks headers and keep the factory exhaust or get a complete Stainless Works system.
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