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Discussion Starter · #1 ·
Finally received the doug thorley headers from the ebay listing by steve, they were stamped 10/20/09 when they were finished. They are really good quality and great looking. Can't wait to get them installed next week.
 

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Nice. Welcome to the DT club.
 

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You are going to really like them.
Look at my times then my mods. Those times aren't too bad considering I was running that day close to 6000 pounds. That reminds me, I need to get the truck weighed.
 

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They sure look purdy!!
 

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The only thing I ran into on mine was the bolts at the collector connecting to the b-pipe.



From the picture you can see the bolts which came with the headers where not threaded down far enough. I had to pick up new bolts and nutz.
 

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congrats Ive been having mine for 6 months now and still havent installed them. Should have time this christmas break though, college is time consuming. lol
 

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Discussion Starter · #10 ·
I ordered these parts from nissan parts dept.

2x Exhaust metal gaskets (part #14036-7S001)

4x Manifold to collector stud bolts (part #14064-JG30B)

2x Exhaust collector o-ring gaskets (part #20691-30P00)

All for $59.52 shipped.


Here are pics of all the parts and a pic of the new doug thorley collector bolts compared to the factory studs.

Also the doug thorley studs put into the collector.

hope these help!
 

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I ordered these parts from nissan parts dept.

2x Exhaust metal gaskets (part #14036-7S001)

4x Manifold to collector stud bolts (part #14064-JG30B)

2x Exhaust collector o-ring gaskets (part #20691-30P00)

All for $59.52 shipped.


Here are pics of all the parts and a pic of the new doug thorley collector bolts compared to the factory studs.

Also the doug thorley studs put into the collector.

hope these help!

Funny thing is, I have header gaskets, studs, nutz, metal o-ring gaskets in my tool box. Don't ask cause I wont be telling why I have extras.
 

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congrats Ive been having mine for 6 months now and still havent installed them. Should have time this christmas break though, college is time consuming. lol
I am in the same boat, just sitting on mine also from the group buy. Not sure when i am going to install mine.

Let us know how the install goes
 

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congrats Ive been having mine for 6 months now and still havent installed them. Should have time this christmas break though, college is time consuming. lol
I know what you mean when you say college is time consuming, especially when finals are around which is coming up....:bangit:
 

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The only thing I ran into on mine was the bolts at the collector connecting to the b-pipe.
From the picture you can see the bolts which came with the headers where not threaded down far enough. I had to pick up new bolts and nutz.
Couldn't you have just added like two washers???
 

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I ordered these parts from nissan parts dept.

2x Exhaust metal gaskets (part #14036-7S001)

4x Manifold to collector stud bolts (part #14064-JG30B)

2x Exhaust collector o-ring gaskets (part #20691-30P00)

All for $59.52 shipped.


Here are pics of all the parts and a pic of the new doug thorley collector bolts compared to the factory studs.

Also the doug thorley studs put into the collector.

hope these help!
I bought flange gaskets for collector to B pipe in addition to the O-rings. Are the flange gaskets needed?

I just received the headers and the collector bolts look fine to me. Same as your pic.

von made me some B-pipes with custom bend pipe with MF cats & flanges and I have JBA cat-back. I think I am getting pretty close to set once I get the gasket situation straight.

I have the metal Nissan OEM head to exhaust manifold gaskets.

I have the header collector to B Pipe metal O-rings.

Questions:

Do you use a metal flange gasket between the collector flange and the B-Pipe flange?

Do you use a metal flange gasket between the aft end of the B-Pipe and the JBA cat-back flange?
 

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Discussion Starter · #17 ·
Should be getting them installed next week around tues or wed. I will take as many pictures as i can until my friend kicks me out of the shop lol.:teeth:
 

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Questions:

Do you use a metal flange gasket between the collector flange and the B-Pipe flange?

Do you use a metal flange gasket between the aft end of the B-Pipe and the JBA cat-back flange?
Your going to need the metal gaskets before and after the b-pipes. You dont need the metal O-ring.
 

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after installing long tubes, do you need to reprogram the computer?
 
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