Cusco Toyota Yaris GR (20+) Close Ratio Gear Kit

Close Ratio Gearbox can be often found on sports cars to improve performance by revving faster, close-ratio gearboxes make better use of available engine power by offering less of a gap between each gear. While they are most common on sports cars, close ratios will also help to improve engines that have poor flexibility low in their rev range, aiding acceleration and hiding gaps in the power delivery. The downside is a lower top speed and poorer fuel economy because the engine is spinning (revving) faster.