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I've had 2 Roushcharged Mustangs one 4.6l and one 5.0 Coyote. Neither needed internal engine mods. As long as you don't get froggy with boost its very reliable and safe.
Don't piece a system together. Buy a complete system and you will end up with very few problems. The Roush kit is a weekend install for a first timer. The guys at Roush can knock it out in less than a day. The Roush kits are designed for Mustangs and F150's. You'll need to fab up intercooler mounts and plumbing.
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