Sparco 600 Series Left Side Seat Base 2011-2017 Nissan GT-R vendor_Hotchkis Although Sportline springs are race

Although Sportline springs are race inspired

ACT's 4-pad spring-centered race disc features a spring-center construction to properly damp torsional vibrations for quieter operation and resist failure even under harsh conditions

APR Side Rocker Extensions are the next step to help aerodynamically tune the handling of a car

The included LC-2 controller and data logging capabilities provide the flexibility needed for everything from daily drivers to high-performance race builds

Sparco 600 Series Left Side Seat Base 2011-2017 Nissan GT-R vendor_Hotchkis Although Sportline springs are racePart #: 600SB125L Sparco Seat Bases utilize the factory seat mounts on your vehicle's floor and provide a flat surface for mounting your Sparco seat. All seat bases are vehicle specific and provide a 100% bolt in installation. The 600 Series Sparco seat base is constructed with 3 16" thick steel to provide a strong flex free mount. In addition to the mouting holes provided for standard bolt on installation, the Sparco base has a wide metal platform to