From what I'm told it's like putting nitrous oxide to your "transmission" . It is suposed to direct high pressure from your impeller straight to your bowl and out the nozzle you dont have, bypassing the low pressure gap in your old bowl. You dont want my nozzle though. If you do want it it would just be a momento on your wall for "shit I shouldnt have bothered with!" Thats where it is at my house. Along with promisses of EXCELLENT PERFORMANCE and the infamous " Can you rebuild this prop for me?" If I'm Wrong... someone tell me so.... havent had my rebuilt drive out yet ( Damn Ohio weather...) . Daniel.