Arctic Cat sent us a CD with the myriad changes it has made to every 2008 model.
The CD includes pictures of a zillion tweaks graphically portraying what the engineering department has been up to this summer.
Most notable are changes to the F-8 (all variants) including clutching, gearing, ECU mapping and a slew of detail refinements under the hood.
F-1000s get a host of touches including a new three ramp/roller primary, along with clutching and ECU mods aimed at improving low-end acceleration, top speed and fuel economy.
Oil pump tweaks across the 2-stroke F-line will reduce start-up smoking and improve oil mileage as well.