We've gone ahead and made it simple to upgrade your Honda Aero or Pre 94 Elite with two awesome performance packages.  This is the Stage 2 kit which includes: Malossi Big Bore Kit with all gaskets/seals rings S23 1500 RPM Contra spring NCY 1500RPM Clutch Springs OEM Jet kit for Honda carbs With this kit you should see about a 8-15mph top speed increase with better acceleration. If you haven't done the upgrades in the Stage 1 Kit here, make sure you do those upgrades FIRST or else you won't see as much performance from this kit.