Will an THDP for ATR headers fit stock headers???

GNBOY · 03-08-2003, 04:37 PM

Anybody know if a Terry Houston Downpipe designed for ATR headers will fit a GN with stock headers? Don't want to buy it if it won't fit. Thanks!

The Radius Kid · 03-08-2003, 05:48 PM

Should fit,no problemo.
The THDP for stock headers is too tight to clear the ATR crossover,so Terry made one for the ATR headers that "swings" out a littler farther.
Since the stock headers don't have the wide out crossover that Y's together at the turbo inlet,the THDP should clear the stockers no problem.

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Give em' hell!

Steve Wood · 03-09-2003, 10:24 AM

If that is the case, I would think he would make them all that way rather than having two jigs.

The Radius Kid · 03-09-2003, 02:08 PM

You would think so,but the fit for the ATR headers version goes between the heater box and frame rail where the gap is tighter.

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Give em' hell!

GNBOY · 03-09-2003, 10:23 PM

thats what I thought, why not just make the ATR pipe to cut costs. Oh well, at least it will fit. Thanks

03-08-2003, 04:37 PM	#1 (permalink)
GNBOY Junior Member Join Date: Mar 2003 Posts: 2	Will an THDP for ATR headers fit stock headers??? Anybody know if a Terry Houston Downpipe designed for ATR headers will fit a GN with stock headers? Don't want to buy it if it won't fit. Thanks!

03-08-2003, 05:48 PM	#2 (permalink)
The Radius Kid Registered User Join Date: May 2001 Location: Stoney Creek,Ontario,Canada Posts: 8,982	Should fit,no problemo. The THDP for stock headers is too tight to clear the ATR crossover,so Terry made one for the ATR headers that "swings" out a littler farther. Since the stock headers don't have the wide out crossover that Y's together at the turbo inlet,the THDP should clear the stockers no problem. ------------------ Give em' hell! __________________ Politics is the art of glad-handing,passionate bllsht and hidden agendas.

03-09-2003, 10:24 AM	#3 (permalink)
Steve Wood An American American Join Date: Sep 2000 Location: East of Eden, Texas Posts: 36,369	If that is the case, I would think he would make them all that way rather than having two jigs. __________________ ------------------ 'A government that is big enough to give you everything you want, is also big enough to take away everything you have.' - Thomas Jefferson I think one should worry more when people are lining up to get out of a country rather than into it. If they're sneaking in, we must be doing something right. The Chronicles of Zap, from the early 21st century www.vortexbuicks-etc.com

03-09-2003, 02:08 PM	#4 (permalink)
The Radius Kid Registered User Join Date: May 2001 Location: Stoney Creek,Ontario,Canada Posts: 8,982	You would think so,but the fit for the ATR headers version goes between the heater box and frame rail where the gap is tighter. ------------------ Give em' hell! __________________ Politics is the art of glad-handing,passionate bllsht and hidden agendas.

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03-09-2003, 10:23 PM	#5 (permalink)
GNBOY Junior Member Join Date: Mar 2003 Posts: 2	thats what I thought, why not just make the ATR pipe to cut costs. Oh well, at least it will fit. Thanks