Yellow Speed Racing (YSR), founded in Taichung, Taiwan in 2003, specializes in motorsport-grade suspension and performance accessories. YSR’s offerings include 33‐way adjustable coilovers, precision camber plates, reinforced sway bars, big‐brake upgrade kits, and hydraulic handbrake systems—each engineered and valved specifically for the chassis dynamics of cars like Honda Civics, S2000s, and ZZW30 chassis of the MR2. Tested extensively on track by the YSR racing team, these components deliver enhanced cornering stability, brake response, and driver feedback for both street and competition use.