Still 6 years gone and nothing has been done to improve the engine performance... i have 2 with bolt onmods sitting in my shop for the last 2.5 years now... my girls now 10 and 11 literally became bored with them... they ride their old worn out polaris 70's easier to start, they're more responsive than the can ams and more reliable... sorry! Some folks need to hear this... God bless!