Synchrotech Pro Series 1-4 Gear Set - GSR Turbo - SG-B14-GSRDescription: These gears are direct fitment for the 94 01 GSR. They are designed with a longer 1st for a better launch and 2 4 ratios that are perfect for a Turbo B series. The OEM GSR main shaft and 5th gears can be reused or the 5th gears can be replaced with a MFactory shaft brace. The 3rd and 4th gears are designed with a replaceable synchro gear cone. Even when you damage the engagement teeth from a mis shift, you can replace this part without