KSE Racing Exhaust for Yamaha RX-Z

The KSE is much shorter that the stock exhaust Click to enlarge Click to enlarge The chamber much thinner compare to stock exhaust chamber Click to enlarge KSE Racing Exhaust for Yamaha RX-Z Head of the exhaust is much wider than stock Straight flow construction Smaller/thinner chamber mean this one is for top RPM power…

Arrow Racing Chamber + Muffler for 125Z/R

Why do you need to use racing chamber exhaust? The basic idea behind an expansion chamber is to use the momentum and pressure of the exhaust gases to create a pump that squeezes more air and fuel into the cylinder during the intake stroke. It does the same sort of thing that a turbocharger does,…