Im running stock box and filters, I'm waiting to hear what any Con's are about modifying the airbox lid.

For your info kowntafit I think after an airbox mod, pipes and wire splice people rejet to approximately 140 mains and 40 slow jets (or is this wrong guys??)

I too am keen on this thread, I know the pro's are more airflow=power but what are the cons (if any) ie poor starting/idle issues? Reliability.....?
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........."I love the smell of 2-stoke in the morning.......Smells like victory"............

MC21 Pentax SP...... TYGA'D