Simpson Memory Fit Fire Resistant Racing Undershirt - SFI 3.3 NKA the One Versa is also

the One Versa is also ideal for cars with small cockpits that typically suffer from frustrating harness adjustments

race‑grade performance to the rear axle of BMW E36/E46 (and compatible models)

The AIM CHT (Cylinder Head Temperature) Sensor is designed for measuring engine temperatures on most racing karts

Complete coiled cord helmet wiring kit with NASCAR style plug

Not recommended on the rear axle

Simpson Memory Fit Fire Resistant Racing Undershirt - SFI 3.3 NKA the One Versa is alsoSimpson's Memory Fit line of fire resistant racing underwear features a unique fabric that becomes softer with age, guaranteeing a fit that is made just for you! The lightweight, anti microbial treated fabric bends, moves, and stretches with you, reducing bunching and driver discomfort. Athletic cut, and contrasting stitching gives a stylish, modern look.