Ive heard using 1997 zrt 800 stock ac pipes, are better than buying d&d or blackmagic. You could email or call Hooper www.hooperracing.com
they race and they are one one of the best ice racers in the u.s.
I have ran both the D&D and Black magic pipes in my sled(different stages of the motor though so i can't tell the diff in power) But as for fit, I would go with the D&D, the Black Magic pipes melted a few holes in my bellypan. and the D&D come with a silencer, while the Blackmagic went into the stock muffler(louder is bettterrr anyway hope this helps
A forum community dedicated to snowmobile owners and enthusiasts. Come join the discussion about performance, troubleshooting, trails, maintenance, riding tips, modifications, classifieds, accessories, and more!