Coming Soon

Ford Mustang S550 (6th Generation)

2015–2023 · S550 · coupe

The S550 is the first IRS Mustang and the first sold globally. Coyote 5.0 (Gen 2 to 2017, Gen 3 2018-2023, 460hp), 2.3L EcoBoost I4 (310-330hp), Voodoo 5.2L flat-plane crank in the GT350 (526hp, 8,250 rpm redline), Predator 5.2L supercharged in the GT500 (760hp). MT82 6-speed manual lineage continues; 10-speed 10R80 automatic from 2018+.

Watch out: MT82 6-speed manual notchy/grinding 3-2 downshift and 1-2 shift-fork wear — Ford has issued multiple TSBs (e.g., 18-2267 for 2018-2019 shift forks) and many cars need synchronizer or full rebuild by 60-80k miles.