IMO, it was one of the best changes to my sled. Yeah, its a PITA to pre-mix all the time but I know exactly how much oil I'm using. My sled has never run so clean. I never streak, idle without loading up ... and have gone through less oil than my riding buds. Best yet, the throttle pull is nothing. your thumb will thank you. Oh, the install was easy!
here's the parts list:
Ski-Doo 420810825 Cover Plate (block off plate)
Ski-Doo 420931565 Gasket (for block off plate)
Ski-Doo 512060141 Ecm Support (bracket that pull cord, oil tank, and ECM mounts to)
Ski-Doo 271000110 Protector Trim (protects water hoses from getting punctured from bracket)
Ski-Doo 518324951 Plate (ECM sits on this)
Ski-Doo 570069700 Latch (holds ECM)
Ski-Doo ????? 440 oil tank.
Checkout Dootalk for info threads and installs.