T-4 EXHAUST SYSTEM XR100R/XR80R Category_Default Category/SLED/Ski-Doo/800 E-Tec the critical ramp area is

the critical ramp area is designed to give your engine a cleaner intake charge and a more efficient combustion cycle

You’ll be the hero of the campsite with all these useful tools

the Dirt Tamer offers serious puncture resistance and its tread lugs run deep into the sidewall for added protection

Fuel controller

T-4 EXHAUST SYSTEM XR100R/XR80R Category_Default Category/SLED/Ski-Doo/800 E-Tec the critical ramp area isThe T 4 System is a tunable version of our more exotic Ti 4R System. RC 4 Resonance Chamber has been added to the head pipe to reduce noise. (The RC 4 Resonance Chamber, depending on year of your bike, might not come with the system.)