2006 2007 KLX 250 Performance Air Box Cover

thingiverse

This cover lets you keep your original one in case you want to switch back or sell the original cover. Original gasket is reused. If you dont have the gasket, simply fill the gap with 100% silicon half way up. I am using screen to keep large objects from falling into the filter housing (optional) You need this only if you have either gutter exhaust or a slip on. Also jetting will be required. Performance upgrade is in 3 stages, more air+more fuel+less exhaust restriction. More air comes from larger opening in the air filter lid, more fuel with larger jet, and less exhaust restriction by either using slip on or gut the pipe your self if you can weld it back together.