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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections. |
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#6 | |
Mod With The Least :P
Join Date: Feb 2008
Location: Manchester, TN
Posts: 1,649
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I would just get a S5 housing and swap it on as they are compatible and thats the only real difference from a S4-S5. The S5 is already twin-port internal and with a little portwork will not boost creep even on modded motors. Fully ported stock-door S4 wastegates suck, mine would hid 20psi fully ported
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