EVO+ Adjustable Air Box UpgradeHyper Racing # 605 3032 All the parts you need to upgrade your existing airbox to the EVO+ airbox. It does not include the air filter element, pre filter, and the lower stacks. These are the same as the original EVO airbox.

Spring return locking mechanism keeps hub locked onto shaft

Hyper Racing # 12-156

This is a left rear shock developed for our '94-'09 270's and '98-'06 Hyper 600's

Tech Tip: Wrap area to be cut with duct tape

Hyper Racing # 636-214

We performed many back to back dyno tests with different foam types and chose this one because it shows no loss of horsepower

Hyper Racing # 146-591

Bladder Shell comes with pre-cut hole

This is the heavy duty 3/4" thick version of the 40-1725 torsion arm

use the 1-3 psi low pressure spring included in the 600-185 Holley Rebuild Kit (sold separately)

Hyper Racing # 051-201

600-4954 or 600-4953