Ok so im prepping my build im shooting for around 500 to 600 hp and im planning on using a holset he341cw turbo. Now my questions are on what size piping and im big on the sound of a flowmaster style muffler but i havnt seen one on a built turbo setup only on a mildly upgraded and it sounded great and didnt seem to hinder performance. thoughts, ideas, suggestions has anyone experimented with different exhaust size and muffler combinations. And then has anyone used this turbo its suppose to have the best of both worlds the quick spooling of the hy and the power of the hx
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