Prism Reviews: Bruntons Sigma Drive

This is a review and installation video of the Bruntons Sigma Drive. The sigma drive is the answer to all of your misalignment prayers, making fine engine alignment a thing of the past. Please subscribe if you haven't already, to help fund future reviews go to patreon.com/svprism or go to svprism.com and hit the donate button. For more information or to order go to: bruntons-propellers.com