While testing a 2016 Focus RS for the comparison test (link: Ford Focus RS vs Subaru WRX STI vs Mitsubishi Evo X MR ), I caught up to a 2016 Mustang Shelby GT350R and had a friendly head-to-head battle. Both cars were completely stock. The video doesn't capture just how good that car sounds. We had a chat afterwords and the owner was very cool about it. His rear tires were starting to look old and he told me it felt a little less grippy than he was used to, so they could have been heat cycled out. Our track is also short and technical, so high hp cars don't get much room to stretch their legs, robbing them of some of the advantage they'd have at a power and/or longer track. The Focus had the optional Michelin Pilot Sport Cup 2 tires. Check out the video below for a couple of laps.
It went 11.77 seconds to be exact and past the traps at 116 mph and that's with minor modifications. The modifications were courtesy of the folks at Ford Racing. They recently got a hold of three 2015 Mustangs, one with the 2.3L EcoBoost engine making 310 hp and two GT's with the 5.0L V8 making 435 hp. The power modifications are minor for two of the three Mustangs. The 2.3 EcoBoost gets a "Prototype Off-Road Exhaust" which most likely means there are no catalytic converters or "cats", a more free flowing exhaust and a tune. One of the GT's gets the same off-road exhaust treatment and a tune plus "ARH Cobra Jet Long Tube Headers". In the video, they say they did "a few changes to the air intake system but basically these are close to what any consumer can buy" so they may have included a K&N drop-in filter which FRPP Performance Packs for the 2014 Mustang GT included or an aftermarket CAI with a cone style filter....







