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I went with a Roush cat back (which deletes the resonator) and CAI on mine and I love it! You can get them both together as a package from Roush.

A CAI, 93 octane, and a tune will give you the best mpg. I get right around 19 mpg on the highway daily. Sent from my iPhone using Tapatalk

With the mods that I've done, I reached a top speed of 135 mph in my Raptor. I ran a 15.11 @ 91 mph in the 1/4 mile at the track. I'm looking to increase acceleration, and wonder if a supercharger is really worth the money. I've heard mixed opinions... What are some aftermarket performance mods...