The new Harmonic Balancer utilizes an aluminum case to cut down on the total weight, (12lbs Lighter then 2007 Shelby GT500 Balancer) as well as the flywheel weight of the dampener. The dampener is degreed a full 360 degrees and degreed every 2 degrees from 30 to 50 degrees. This lower pulley adds 4lbs of Boost to your setup. SFI SPEC 18.1 Approved.
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