WTB 3in SS DP to fit ATR headers

[1986 Buick GX1]

I would like to update my car a bit by installing a 3in stainless steel downpipe with integral waste gate and 1 3/8" or larger puck that will clear the ATR headers.
I don't need a 3.5in downpipe, but I would take one.
Text or call. Thanks,
George
641.530.1163

 

[1986 Buick GX1]

Well, it looks like the only DP know to work with ATR headers is an ATR 3" downpipe, so that is what I'm looking for.
A 3" ATR DP with integral waste gate.
Thanks for your help.

 

[chris]

RJC will fit.


Posted from the TurboBuick.Com mobile app

 

[1KWIKSIX]

Well, it looks like the only DP know to work with ATR headers is an ATR 3" downpipe, so that is what I'm looking for.
A 3" ATR DP with integral waste gate.
Thanks for your help.

Wrong.......there was another 3" S.S. internally gated down pipe that was able to fit ATR / Kenne Bell headers.

I used to have a set of ATR Headers and went thru the same dilemma trying to use my THDP. Unfortunately my THDP was not the model with a longer sweeping elbow for use with ATR / Kenne Bell Headers and could not be used.

I discovered South East Turbo (who may now no longer be in business)?, offered two versions of a 3" Terry Houston Style Stainless Steel Down Pipe. One version for stock headers and the other featuring a longer sweep at the bend specifically for use with ATR / Kenne Bell Headers.

I would strongly suggest you use the search function to check other members findings when dealing with this vendor. If they aren't in business any longer, you could post in the WTB section . Who knows, you might find one.

I've since sold my SE Turbo DP and Kenne Bell Headers long ago & replaced with TA race headers and gone back to my original THDP.

You may also consider an externally gated down pipe...I believe there are several out there that will do the job for you.

 

[TurboTnZ06]

If you use a pipe that is for stock headers, I used a RJC downpipe flange, some longer bolts, 2 copper gaskets, to move my external downpipe further out when I got race headers.

 

[1986 Buick GX1]

Thank you for the info. I will be replacing the 2nd mild steel DP that I have made over the years to fit the BGC elbow and ATR headers.
I should have bought a THDP when I made the last one, when they were $400 new.
I haven't looked at performance parts for close to 10 years, a lot has changed.
Thank you for the suggestions, I will check them out.