Installed my shortie headers today. - Page 3 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

HaveBlue · 09-18-2009, 08:19 PM

Hedman Hedders will have 304 Stainless Shorties introduced at SEMA.

MaroSS · 09-18-2009, 09:18 PM

Are the doug thorley headers stainless steel? and will they go bad over time?

rex113 · 09-18-2009, 09:54 PM

Quote:

Originally Posted by MaroSS

Are the doug thorley headers stainless steel? and will they go bad over time?

They are ceramic coated steel, this coating is said to keep underhood temps down and also helps to preserve the metal. I dont know how long they will last.

2SSRS-CGM · 09-19-2009, 09:43 AM

I still have my GMPP shorties on order, does anyone know if we can expect the same gains from those? The GMPP ones don't void the warranty. do these aftermarket ones?

SGOS252382 · 09-19-2009, 10:28 AM

I would like to see some actually before and after dyno number from Camaro owners (not advertised number by the company that sells them).

If they really do make 18 hp, 35 lb ft of torque (no tuning) on a dyno I'll be impressed.

lcmc · 09-19-2009, 10:34 AM

Quote:

Originally Posted by 2SSRS-CGM

I still have my GMPP shorties on order, does anyone know if we can expect the same gains from those? The GMPP ones don't void the warranty. do these aftermarket ones?

I'm wondering about the GMPP headers also. From the pictures I"ve seen they don't even look like headers.

2SSRS-CGM · 09-19-2009, 11:12 AM

No they don't look like the traditional header, but it seems as though they'd be functional. Although i'm not sure how the internal tubes look like hopefully they've done some R&D to figure out how to make each bank flow equally. I just don't like the idea of collector into bottle neck, but if it works... it works
Do the aftermarket shorties void the warranty?

HaveBlue · 09-19-2009, 11:18 AM

That is a heat sheild over the top of the tubes

2SSRS-CGM · 09-19-2009, 11:31 AM

Quote:

Originally Posted by HaveBlue

That is a heat sheild over the top of the tubes

yeah, I just read that

kinda hides what we need to see in it tho...

2SSRS-CGM · 09-19-2009, 11:57 AM

It actually almost looks like the tubes aren't all equal length...

2SSRS-CGM · 09-20-2009, 05:56 AM

Quote:

Originally Posted by rex113

I installed my Doug Thorley shortie headers today. Did it by myself in my garage with no lift, it took me about 3 hours. It is my only modification thats been done to my ls-3 engine and I can notice a major difference in power,the rpms climb so much faster now. As far as sound it is a little louder at idle but I can really hear a differerce when driving under load. I am very happy with the new sound and will keep the rest of the exaust stock. I feel these headers were worth every cent. I will now attempt to post some pics.

video/sound clip? what other things do you have done to the car?

rex113 · 09-20-2009, 08:58 AM

Quote:

Originally Posted by 2SSRS-CGM

video/sound clip? what other things do you have done to the car?

I will try and post a sound clip,as far as other mods my engine other than the headers is stock. My next mod will probably be the 25% underdrive crank pulley and then a cold air intake.

thebrainhart · 09-20-2009, 07:29 PM

Even with the heat shield, it doesnt look like their much better than stock, here are my stock ones compared to my DTs

Styffydawg · 09-20-2009, 07:49 PM

I have a set of thorley mid lengths on my ram and after 3 years or so the ceramic coating was gone. The engine compartment in my truck is a lot more open than in a car, that may have extended the life of the coating by having more open air surrounding them. I would go with SS, or if you don't mind pulling your headers off and on every few years just get a can of ceramic paint and recoat the headers.

I would like to see a dyno sheet on the performance gains of these shorties. Over the stock manifold.

09-18-2009, 08:19 PM	#29
HaveBlue Drives: CTS/CAMARO Join Date: Jun 2009 Location: SEMA/PERF INDUSTRY GUY Posts: 488	Hedman Hedders will have 304 Stainless Shorties introduced at SEMA. __________________ "everyone wants to go to heaven. but nobody wants to die" "you gotta pay to play" SEMA PICTURES-PARTS & CARS http://www.pbase.com/haveblue/sema_2009

09-18-2009, 09:18 PM	#30
MaroSS ZL1 Drives: 10' SS/RS - Sold; 15' White ZL1 Join Date: May 2009 Location: Harbor City, CA Posts: 682 View My Garage	Are the doug thorley headers stainless steel? and will they go bad over time? __________________

09-19-2009, 09:43 AM	#32
2SSRS-CGM Drives: '16 Z06 M7 Join Date: Jul 2009 Location: Detroit Metro Posts: 208	I still have my GMPP shorties on order, does anyone know if we can expect the same gains from those? The GMPP ones don't void the warranty. do these aftermarket ones? __________________ 2016 Corvette Z06 M7: Halltech Intake, Corsa X-Pipe, MGW Shifter

09-19-2009, 11:12 AM	#35
2SSRS-CGM Drives: '16 Z06 M7 Join Date: Jul 2009 Location: Detroit Metro Posts: 208	No they don't look like the traditional header, but it seems as though they'd be functional. Although i'm not sure how the internal tubes look like hopefully they've done some R&D to figure out how to make each bank flow equally. I just don't like the idea of collector into bottle neck, but if it works... it works Do the aftermarket shorties void the warranty? Attached Images __________________ 2016 Corvette Z06 M7: Halltech Intake, Corsa X-Pipe, MGW Shifter

09-19-2009, 11:18 AM	#36
HaveBlue Drives: CTS/CAMARO Join Date: Jun 2009 Location: SEMA/PERF INDUSTRY GUY Posts: 488	That is a heat sheild over the top of the tubes __________________ "everyone wants to go to heaven. but nobody wants to die" "you gotta pay to play" SEMA PICTURES-PARTS & CARS http://www.pbase.com/haveblue/sema_2009

09-19-2009, 10:28 AM	#33
SGOS252382 Drives: 2010 Camaro 2SS/RS Join Date: Mar 2008 Location: S.W. Florida Posts: 6,294	I would like to see some actually before and after dyno number from Camaro owners (not advertised number by the company that sells them). If they really do make 18 hp, 35 lb ft of torque (no tuning) on a dyno I'll be impressed.

09-19-2009, 11:57 AM	#38
2SSRS-CGM Drives: '16 Z06 M7 Join Date: Jul 2009 Location: Detroit Metro Posts: 208	It actually almost looks like the tubes aren't all equal length... __________________ 2016 Corvette Z06 M7: Halltech Intake, Corsa X-Pipe, MGW Shifter

09-20-2009, 07:29 PM	#41
thebrainhart Drives: '10 Camaro 2SS/RS CGM LS3 A6 Join Date: May 2009 Location: Bountiful, UT Posts: 683	Even with the heat shield, it doesnt look like their much better than stock, here are my stock ones compared to my DTs Attached Images __________________ - 2010 Camaro 2SS/RS CGM LS3 A6 "Lurch" - FLYNGSS - Some ProCharger, Alky, CompCams, Brian Tooley, Holley, Livernois, K&N, Ridetech, DSS, Kooks, JDP Motorsports, Pfadt, BMR, Prothane, Weld, M&H, Mickey Thompson, RKSport, Elite, Garys, Defenderworx, Anvil, etc.

09-20-2009, 07:49 PM	#42
Styffydawg SSinister Drives: Ram SS/T + Murdered Out 2SS/RS Join Date: Sep 2009 Location: Wilmington NC Posts: 82 View My Garage	I have a set of thorley mid lengths on my ram and after 3 years or so the ceramic coating was gone. The engine compartment in my truck is a lot more open than in a car, that may have extended the life of the coating by having more open air surrounding them. I would go with SS, or if you don't mind pulling your headers off and on every few years just get a can of ceramic paint and recoat the headers. I would like to see a dyno sheet on the performance gains of these shorties. Over the stock manifold. __________________ SSinister

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Anyone installed stainless works headers yet?	FI4T0MCAT	Tuning / Diagnostics -- engine and transmission	11	08-15-2009 11:03 AM
Dynatech Long Tube Headers for Camaro SS- Bolt on 36Hp/25Tq-Order Now!	Kris@BMCPerformance	V8 Bolt-Ons & Tunes	6	08-13-2009 02:55 PM
Borla Cat Back sound clip yet?	Bryan2230	Camaro V6 LLT Engine, Exhaust, and Bolt-Ons	52	08-06-2009 12:23 PM
So I drove a Challenger all day today.	mmollo	Chevy Camaro vs...	40	08-05-2009 12:35 PM
Some are saying that customer order production started TODAY	GLBL WMR	Camaro Price \| Ordering \| Tracking \| Dealers Discussions	70	03-17-2009 12:07 AM