An Anti-Roll Bar is a torsion spring that connects the left and right wheels of an axle and resists differential vertical motion between them, reducing body roll during cornering. By controlling the rate of weight transfer between front and rear axles, anti-roll bars are a primary tuning tool for adjusting understeer and oversteer balance. Griggs Racing manufactures adjustable anti-roll bar kits for Mustang front and rear applications across SLA, strut, IRS, and SRA configurations.