East Tennessee Region SCCA

Ford Fiesta ST 2014 (FWD) Mods: Cold Air Intake, Larger intercooler, Downpipe, Coil-over Suspension, Sway-bar added, Stage 3 COBB tune Wheels 16x6 Tires -- 215x50 R16 Federal RSR compounds Could someone advise if I would qualify to run ST class if I were not running the R-compound tires? I'm a bit u...