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  1. DSM 4G63T exhaust system, tube size and length of down pipe and exhaust

    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...
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    • 4g63 downpipe dsm exhaust exhaust manifold gt25 tube turbo
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    • Forum: Turbo System Tech
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