scott riley
New member
Can anyone tell me the physical differences between Bender "race" and "trail" quad pipes for the Vmax4's? I've heard one thing may be the "belly" length? Dimensions? Thanks!
Could I put a set on a 800 and just jett and clutch it I heard the 800 cranks are good ? Would I need to port the sled?Hauck Howlers are dragsled pipes and run well over 10,000 RPM. You can use the Search window at the top of the page and find some information on them, but I haven't seen any definitive answer to horsepower gain.
You can look in the Vmax-4 Snowmobiles Tech section from the main forum page. There are "pipes" sections for the 750's and 800's. You'll find an article comparing different pipes in the 750 section:
1993 DynoTech Pipe Shootout
vmax4.com
PSI pipes are probably the most popular because you get a good horsepower gain with the stock CDI and no crank welding necessary.
Shark