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9000 miles on mine. Drive most days, if nasty or definitely raining I drive the Super Duty. I'd prefer an auto, but tolerable once I got rid of the 3.73 gearing. I'm not nuts about the tune for daily driving, there are some real flat spots at lower RPM if lightly accelerating, but I've...

What sizes front and rear? Hows the handling on the 555R?

Nice write up. Good to see some dyno results for those of us with the 670 Roush setup.

The wheels are Velgen 9's. I like to do hard pulls out of curves and push the G's a bit. The "drag radial" has me concerned. Will handling be at least comparable to the Pirellis? Need4speed - feel free to shoot me a PM and we can talk options and $

Thanks for that feedback cmylxgo, I'll be unhappy with $2500-3000 in tires/wheels and no better hookup. It'll look great, but that's not enough. I'm concerned about the 555R on the highway and in the curves. "Semi" Radial doesn't sound great, but I know this is the gold standard for those...

Nice pics and write-up. They make a 315/35-20 that would fit me quite nicely. Interesting. Being an "R" tire, could one expect to get 10k miles doing conservative DD with occassional blasts?

I'm in the market for some new skins. Finally had enough of the Zero's and not being able to really utilize the power of the Supercharger. P1 Roush, 3:31 gears. I have some 20X10.5 Vergen 9 wheels on the way. I'm looking at 315/35/20 rears and 275/35/20 fronts. I've narrowed things down...

I'm doing the opposite swap. Has anyone done a gear change without buying a flare tool. Costs more then the ring and pinion!

I'm running the same setup on 93 octane. Really good numbers! A couple of questions - I like that spoiler, is that the Ford racing one? I know nothing about dyno's, why run in one gear vs another? Seems like a fair amount of negativity re: Roush P1, I couldn't be happier with the...

And alot cheaper to install. Good suggestion. PM sent to recommended member. Thanks guys. Whipple deal seems like a racket for a one time use though.

Guys - First post here. Have really enjoyed the forum. I have a '16 GT with a Roush Phase 1 charger. Dealer installed. Fast enough for me as a daily driver. For now... Working on getting power down and driveability. I made a mistake choosing a PP car with 3.73 gears. It's a bit...