3inch or 3.5 inch down pipes

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01-13-2009, 10:50 PM

z28adiction

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3inch or 3.5 inch down pipes

Just wondering what would be best for a twin turbo 35r kit, 3 inch or 3.5inch each. the turbos have an ar of 1.06. boost will be at 20 psi on high boost thanks

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01-13-2009, 11:26 PM

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A larger down pipe is pretty much always better. On those turbos i would imagine a 3inch would work just fine. And it would probably be easier to fab up.