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TOG Headers and 8.1


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#1 Bud

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Posted 03 March 2004 - 12:23 PM

Somebody with TOG headers on a 2500HD 8.1
tell me what you think. Are they worth the $900? :(
2001 GMC Sierra SLE, short bed, 8.1, Ally,
Wester's 93 Tune
Taylor Thundervolt Wires
Spin Tech Muffler
Outlaw Intake
2001 Prowler 31G camper
1969 Olds 4-4-2 one owner!









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#2 tbyrne

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Posted 04 March 2004 - 10:00 AM

The 8.1 headers come standard with a ceramic coating to that makes them a little more expensive than the "base: 5.3/6.0 TOG headers. As for them being worth it, see my mods list below :(

Posted Image Posted Image

2002 8.1 Silverado HD - Comp Cam, TOGs headers, Volant induction, Direct Hits ignition, 8" lift 18" wheels/tires + more
2002 8.1 Suburban -Intercooled Whipple supercharger, TOGs headers, Volant induction, 22" wheels/tires + more - 407hp/558 ft-lb torque at the rear wheels.

www.tbyrnemotorsports.com

#3 DSZ71

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Posted 04 March 2004 - 10:51 AM

A comparible header is Thorley Tri-Ys, and a lot cheaper in price. You may also want to look into ASM headers (Arizona Speed and Marine)

Edited by DSZ71, 04 March 2004 - 10:51 AM.

*2000 Chevy Rado, 6" RCD, Phord keys
*16x10 Weld Stonecrushers sittin' on BFG 295/75/16
*Wester's PCM performance tune
*Alpine CDA 9813 head unit, DynAudio 240gt components, DLS Ultimate A-3 amp, Image Dynamics IDQ10" sub, Ultimate A-3 amp, 62.5 sq feet of RaamMat 60 sound deadening.

#4 tbyrne

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Posted 04 March 2004 - 12:09 PM

I'm not sure about the Thorley but AS+M doesn't have any headers for the 8.1.

#5 Bud

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Posted 04 March 2004 - 12:12 PM

I can't find them on the Thorley web
page either.

I REALLY would like to have TOG!!!!!!! :( :)

Bud
2001 GMC Sierra SLE, short bed, 8.1, Ally,
Wester's 93 Tune
Taylor Thundervolt Wires
Spin Tech Muffler
Outlaw Intake
2001 Prowler 31G camper
1969 Olds 4-4-2 one owner!









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#6 DSZ71

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Posted 04 March 2004 - 02:14 PM

Huh, maybe try to call them up and ask them (Thorley) I am sure if its not listed it will be in the process of having them, its only time before they do. But if you want TOGs, then by all means get 'em....I was just offering alternatives.
*2000 Chevy Rado, 6" RCD, Phord keys
*16x10 Weld Stonecrushers sittin' on BFG 295/75/16
*Wester's PCM performance tune
*Alpine CDA 9813 head unit, DynAudio 240gt components, DLS Ultimate A-3 amp, Image Dynamics IDQ10" sub, Ultimate A-3 amp, 62.5 sq feet of RaamMat 60 sound deadening.

#7 Bud

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Posted 04 March 2004 - 04:03 PM

I wasn't trying to be smart. I know you
were just being helpful. Thorley will have some in about 2 months!
2001 GMC Sierra SLE, short bed, 8.1, Ally,
Wester's 93 Tune
Taylor Thundervolt Wires
Spin Tech Muffler
Outlaw Intake
2001 Prowler 31G camper
1969 Olds 4-4-2 one owner!









--------------------

#8 DSZ71

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Posted 04 March 2004 - 05:28 PM

I wasn't trying to be smart. I know you
were just being helpful. Thorley will have some in about 2 months!

no offense taken, sorry if my words seemed "heavy-toned". :cheers:
*2000 Chevy Rado, 6" RCD, Phord keys
*16x10 Weld Stonecrushers sittin' on BFG 295/75/16
*Wester's PCM performance tune
*Alpine CDA 9813 head unit, DynAudio 240gt components, DLS Ultimate A-3 amp, Image Dynamics IDQ10" sub, Ultimate A-3 amp, 62.5 sq feet of RaamMat 60 sound deadening.

#9 moss6

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Posted 05 March 2004 - 08:05 PM

The TOG's are short tube, not good if you are looking for torque gains at the lower RPM usable driving or towing range. I have yet to find a set of long tubes other than from Banks which are only fitable to the motor home platforms. Still looking.
Randy

#10 tbyrne

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Posted 06 March 2004 - 11:16 AM

TOG headers are mid lengths. Short tube headers will bolt up to the factory Y with no welding required.

#11 moss6

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Posted 06 March 2004 - 11:45 AM

The term 'short' in this case is used as a relationship to the actual length required for good low end torque gains for the 8.1. Tube sizes are also critical in the equation, and need to be relatively small along with the need for longer than typical length for any worthwile gains to be had if one is looking for other than just high rpm gain. Even meeting the above criteria one would be somewhat pressed to justify the cost as gains are far from impressive from the dyno numbers that I have seen when compared to the stock manifolds. (The dyno numbers for the headers were in conjunction with compatable muffler).
Randy

#12 o4yukonxl

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Posted 07 March 2004 - 12:32 AM

Anyone have dyno numbers?
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2004 Yukon XL 2500 SLT 8.1 3.73, AFE Intake, Westers PCM, Lund Deflector, Husky Floor Protector

#13 moss6

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Posted 07 March 2004 - 12:07 PM

Dyno numbers that I'm refering to are at the Bank's site, 8.1 in the workhorse chassis, marginal gains in the normally used rpm range.