The Wilwood Superlite FSL4R/ST front kit is configured for dedicated road racing on 2005–2014 Mustang models, using four‑piston Quick‑Silver calipers with Thermlock pistons and internal damping springs paired to 12.19‑inch two‑piece Spec 37 alloy GT rotors. Each kit includes race compound pads, billet caliper brackets, braided flexlines and premium hardware to suit factory power booster or manual setups.
Wilwood Forged Superlite 4R ST BB Front Kit Road Race 2005-2014 Mustang