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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269


I would just guess as long as we keep the wast gate exhaust separated and are running modest sized hot side turbo's, 2.5" could be just fine. I have wondered about that.

Did the 3.5 motor have a single standard sized WG or twin WG's?

It some point it would seem over-boost might become more an issue before the turbo muffler's tube size becomes an issue. Depending on the turbo but that is just a guess on my part.

Expecially with the small K27-7200 based turbo's that have the larger compressor wheels fitted.

The best.
Old 07-19-2010, 11:17 AM
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