external wastegate
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3 inch versus 3.5 inch downpipe?
I've upgraded to champion ported iron heads and intake with 6466 turbo which appears to be flowing much more than the internal wastegate can manage. Since I'm now in need of an external wastegate setup I'm curious about the downpipe and wastegate sizes that I should consider. I see 3 inch DP is...- supr91tt
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- downpipe external wastegate
- Replies: 1
- Forum: Engine Tech
