dont, waste your money, if you look at the torque curve the can makes less power than stock one does over 8,000 rpms which is were you want the power on a properly clutched sled...
JASON
8000 is a little low try 8300 -- 8500 is where the power is.The can flows more then stock since when does less flow after the pipe on a 2 stroke make less power plus you shed 9 pounds