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i dont think its a wise idea to spend 400 on a thdp just to cut it up when u can take that 400 and buy a quality SUPERIOR external gate.
take the ext. gate and weld it to your header. dump the outlet at the ground.
now you are left with two options
1. run the stock downpipe with the internal gate wired shut. since a portion of your exhaust is going out the gate, it will breathe easier.
2 fab a very simple 3 inch downpipe.
This is not a "good enough" solution, it is the best.
I use a 44mm Tial wastegate and my datalogs show zero movement from my settings.
p.s. the 90 elbow on a gn thdp is very different from a tta thdp.
surej
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86 t-type "Betty" with a few bolt ons, few weld ons, a few JB weld ons and a weldon pump. Stock location heads, intercooler, transmission, convertor, block, computer, rearend, and gastank.
5 TIME PEOPLES CHAMPION
current 2008 PEOPLES CHAMPION elected by a group of peers
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