2015+ Mustang Ecoboost Performance
#40036 from Marshall Mast · Rule change · TB 26-06 (2026-06 Fastrack)
In T3 Spec Lines, Ford Mustang EcoBoost (2015-), change Notes as follows:
"Rear spring relocated to shock allowed. 800lbs springs (F/R) allowed. EcoBoost Performance Package allowed in part or
complete. Optional: 6 speed automatic transmission (with paddle shifters). Speed Factory Intercooler, part # SF-55-002
permitted. BMR rear upper control arm camber links part #UTCA064 permitted. Non-EcoBoost Performance Pack base model320mm front brakes, 2 piston front calipers allowed (-50lbs). Ford Motorsports 6-piston M2300V 380mm brake kit allowed with+100lb penalty, Sway bars allowed up to 35mm 38mm (F) 25mm (R)."