When it's time to change the transmission and rear differential fluid, these kits make it easy. You get four quart bottles of Motul Gear 300 7WW90 gear/diff lube -- enough fluid for both your gearbox and your rear diff. This Motul synthetic fluid meets or exceeds Subaru/Toyota's requirements for both the gearbox and rear diff fluid.
This kit is intended for the BRZ/FR-S RWD six-speed manual transmission. The WRX/STI six-speed is a different gearbox and requires more fluid. We do have a kit for that car, too.