Red Line 75W90NS GL-5 Synthetic Gear Oil Without Friction Modifiers Wheels and they will tell you

and they will tell you that the best bang for the buck handling mod you can give your automobile is a high-performance swaybar

Thermostat opens at 64°C versus 76

Blox engine mount rings are a great and inexpensive upgrade for those looking to shave every last second they can on their autocross or road race prepped S2000

AVO blow-off valves are a 50% recirculate

2002-2007 WRX

Red Line 75W90NS GL-5 Synthetic Gear Oil Without Friction Modifiers Wheels and they will tell youThis GL 5 type gear oil doesn't contain the friction modifiers for limited slip hypoid differentials. This makes the transmission synchronizers come to equal speeds more quickly, allowing faster shifting and much easier low temperature shifting. Can also be used in racing limited slip differentials where weak spring design causes too much wheel spin. Red Line # 58304