SOURCE: Brenspeed
“Review and dyno test of the Roush 727HP Phase 2 supercharger system for 15+ Mustangs. Not only can you get this kit complete for your stock Mustang but those who already have the Phase 1 kit can easily upgrade to the power of the PHASE 2!”
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#FFTV
SOURCE: Ford Performance @ROUSHPerf Unveils New 5.0L Mustang/F-150 Supercharger! – Hellcat who???
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