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Modified Thdp For Sale

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blownbuick

Member
Joined
May 24, 2001
Messages
157
Stainless steel Terry Houston downpipe that has been modifed to run with an ATR external wastegate. Option A would be to use it that way. Option B would be to convert it back to a stock type flapper setup. The hole for the original internal flapper has been plugged with a weld. We took some rough measurements the other day and it looks like the weld could be ground off to unplug that shaft for a flapper to be put back in if you wanted to go that way. There may have to be a little internal drilling done from the inside with an angle drill to finish opening it up. Of course, the modification for the external wastegate will need to be plugged as well to go back to a stock type wastegate setup. A bung has been welded into the pipe for an EGT probe. The pipe is in excellent condition. High resolution pics available upon request.

$215 + shipping

W. John Taylor
blownbuick@excite.com
 

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Sorry about the late response. For some reason, I didn't get an email notification of your post. In answer to your question, I'm not sure. I believe that they make a THDP for ATR headers, but I don't know what the difference is. Maybe somebody will chime in on this. To run it with an external wastegate, you would have to modify the header to accept plumbing from the wastegate. Also, I do know a member here who ended up with the modified passenger side header to run the ATR wastegate.

W. John Taylor
blownbuick@excite.com
 
Last chance to pick up this downpipe before I have it converted back to the original internal wastegate design. I will take $200 + shipping for it.

W. John Taylor
 
I didn't receive your email. I tried to email you, but my email bounced back. Please resend.

W. John Taylor
 
I still didn't receive it. Please PM me the message here or leave me your email address so that I can email you.

Thanks,
W. John Taylor
 
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