TR Final Gear Drive 4.43 for Subaru BRZ / Scion FRS 2013+ M4 protecting your compatible Garmin device

protecting your compatible Garmin device (not included) for the long haul

The main roll hoop is mounted to Porsche's steel frame structure beneath the vehicle just like the factory Cup Car cage

Stilo Venti WRC Composite Helmet

11% More Visibility

ensuring optimal hygiene

TR Final Gear Drive 4.43 for Subaru BRZ / Scion FRS 2013+ M4 protecting your compatible Garmin deviceStock Final Drive Comparison (FT86 BRZ FR S) Most 20132016 manual transmission FT86 BRZ FR S models use a 4. 10: 1 final drive. For the 2017+ Subaru BRZ equipped with the 6 speed manual, Subaru updated the OEM final drive to a shorter 4. 30: 1 to improve acceleration. (Automatic models keep different gearing and this manual final drive change does not apply.) What That Means for a 4. 43 Final Drive A 4. 43 final drive is shorter than both 4. 10 and 4.