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Proven Member
- 36
- 0
- Oct 21, 2022
-
Texas
Hi there,
I'm working on a dsm 4g63 which I made a 1.5" headers and installed GT25 turbo (2" turbine, beside waste gate). I have made 2.5" downpipe for that.
Now I need to know how much should be 2.5" downpipe length and after downpipe what tube size should I use for remain exhaust system (2" or 2.5")? Stay with 2.5" or go 2" exhaust after 2.5" downpipe?
engine target HP would be about 200 whp to 250 whp.
I'm working on a dsm 4g63 which I made a 1.5" headers and installed GT25 turbo (2" turbine, beside waste gate). I have made 2.5" downpipe for that.
Now I need to know how much should be 2.5" downpipe length and after downpipe what tube size should I use for remain exhaust system (2" or 2.5")? Stay with 2.5" or go 2" exhaust after 2.5" downpipe?
engine target HP would be about 200 whp to 250 whp.
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