• Stages and Phases: ROUSH Vehicle Packages and Superchargers Explained

    The 2015-2017 ROUSH Mustang is built in four primary stages: The RS, RS1, RS2, and RS3. The descriptions of each and the foundation on which they’re based have changed rather drastically with the S550 platform, thanks to the introduction of the I-4 EcoBoost Mustang. In laymen’s terms, for the 2015-2017 model years, the RS is a V6, the RS1 is an I-4, the RS2 is a naturally-aspirated V8, and the RS3 of course, is the ROUSHcharged V8. Now that we’ve... continue reading

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