USR GR Corolla rear differential cooler kit

We track tested the kit with Syvec AWD Controller over a year to release this kit. With the cooler itself (no Syvec AWD controller), for most people, it will allow you to complete the track sessions without an issue.  For dedicated track guys, it will provide you an extra 2-3 laps (depends on track) before it triggers the AWD warning.  We highly recommending using Syvecs AWD Controller. Cooler adds extra capacity of oil, and total is close to 1.2-1.5L total.  After 6 trackday  (4-5 20-25min sessions) events with the same oil, we have yet to see the fluid turning black (we check every other trackday events.   Package content - instruction - Setrab cooler with fan. - Setrab oil fittings  - Setrab oil sandwich plate with thermostat - Setrab fluid pump - brackets, rivets, nuts and bolts - wiring and wire connectors Optional parts 180 degree F thermo switch.  Cost of it is additional $100. Using a more flexible braided fiber hose instead of stainless braided hose.  Cost of it is additional $75. fan/pump is controlled by a toggle switch, not by ignition of the car.  Cost of it is additional $50.  Add in-line filter to the pump $80.