yes they haave the pattern on the injection system it works with the oil injection and ski-doo/bomb has the pattern for it and is not sharring wiwth the other CO polaris anad artic-cat and with the envirmental laws getting more restrictive the 2 stroke sled is going to be gone soon . All the othter company,s have tried to copy it but, with out success the goverment may be stepping in . Ski-doo has some of the best minds on their payroll thats where polaris go their new reverse system for the new sleds I think its called perc it accullay stops engine for split second and reverses firing sequence to make engine run backwards .!!! pretty cool shit and no extra weight . Polaris bought the rights from ski-doo