WTT 3 bolt ATR Pass side header for 4 bolt header

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Louie L.

Habitual Line Stepper
Staff member
Joined
May 24, 2001
Messages
4,249
Im testing the waters here. Im looking for anyone who may be looking to trade their 4 bolt ATR header for a 1 year old very low use 3 bolt header. My 3 bolt is set up for external gate so i would like to find the same in a 4 bolt.

Im looking to trade the turbo side/Pass side only

Im going to a 4 bolt turbo and dont wanna hack up a nice header just yet.
Thanks
 
why dont you just sell me the 3 bolt headers and buy a new set. ;) :biggrin:


Nick,
 
I did consider that. I just do not want to take a hit on almost new headers. Id thought I try this and see if someone was looking to trade. ;)
 
Pete,

Thanks for the suggestion.But I thought about that too. I laid a T4 flange on top of the 3 bolt and the size difference between the 2 is quite alot. The 3 bolt flange is basically a 2.5 in. round opening. The 4bolt is a 3 in round pipe squared off .

I can actually just tig this 4 bolt flange on top of the 3bolt and get the same effect as the adapter. SPD stainless has a 3in to T4 flange pipe available. I may just go that way and cut the header below the o2 bung.
 
I am running into the same problem you did a couple years ago. I was wondering did you ever order the T4 flange and pipe from SPD exhaust. If so what size did you end up using and how did it work out?
 
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