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4 Bolt ATR SS headers for sale

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ttypewhite

Well-Known Member
Joined
Oct 1, 2001
Messages
4,156
I am selling my Stainless steel 4 bolt ATR headers. Comes complete with cross over and V-band clamps. Below are pics of it on my motor. $750 shipped

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Off the motor with all the hardware
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Passenger side header had a crack from bad stock motor mounts 4 years ago that was repaired on the weld (not the tube), and has never cracked since, cause I bought H&R mounts.
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these headers line up perfectly without being forced and the flanges are nice and straight, not warped.
 
would you be interested in any trades for the headers like brand new set of wheels?
 

Do you have proof of that?
Others have claimed ATR DP dupped TH ones in the past:confused:
http://www.turbobuick.com/forums/tu...rts/276550-th-down-pipe-waste-gate-issue.html

I personally don't know as I have never tried one, but with a 4 bolt T4 flange were the stock wastegate rod is not a issue, you could always get a another matching downpipe flange to give you the proper alignment you would need between header and DP. I have done it before in the past with my old combo that ran the numbers in my sig and it worked just fine. No leaks either:rolleyes:
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There were two versions of 3" TH downpipes that i recall, one for stock headers and one for aftermarket.
No version of the TH downpipe well work with 4 bolt headers because the exhaust housing on the turbo well not mate between the two.
A 3-4 bolt adapter may be used but depending on which version of the TH dp is used it may not clear and there may also be alignment issues where the dp meets the test pipe or cat converter due to the change in height of the turbo with the 3-4 bolt adapter.

So to answer the question again, a TH dp will not work with 4 bolt headers unless modifications are made.
 
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