TR Close Ratio Gear Set for GC8/GDA (5 Speed) is designed to allow the demanding requirements of high power track/drag cars. It features superior strength, durability, and strictest level of quality control including extreme durability testing. It's proven 30% stronger and tougher than the Billet component. The premium grade steel, precise diamond cut, advance treatment process makes TR Gear Set stronger and tougher than OEMs. The Gear Set is proven to support up to 350 Wheel Horsepower and it's close gear ratios increases acceleration. TR Gear Set is definitely an ideal upgrade for high horsepower Impreza, track or street driving!
1st Gear - Gear Ratio 3.272
2nd Gear - Gear Ratio 2.285
3rd Gear - Gear Ratio 1.667
4th Gear - Gear Ratio 1.238
5th Gear - Gear Ratio 0.958
Cut Type: Semi-Helical
Material: SNAM420 Alloy Steel
*TR Recommends to change all synchros (Subaru OEM)
when upgrade grear ratio set. Please consult local installer.
*Recommended fluid: Motul Gear 300 75W90 Motor Oil