Keep it alive with ZX5. Reduce the throw of your stock gearbox with a Short Shifter. Don't deprive your ride of new ZX5. Short Shifters make changing gears more efficient and reduce 0-60, quarter-mile and overall lap times. Take pride in your ZX5. A great first modification to your vehicle is a Short Shifter. Reduce the throw and have more go by switching to a Short Shifter.