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Nov 2012, SZ tuned my car to 378 WHP with a stock stock engine, stock exhaust, Sport 530 turbos, 615 injectors, dual POP intake and Z1 IC. Add: Ash Spec IC, MS Manis, SZ downpipes, SZ test pipes, and Borla back half and SZ tuned my car to 457 WHP. No engine work, same turbos, same injectors, same intake.
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