The STV Motorsports Cam Chain Tensioner is a must-have for anyone with a TURBO, Large cams and built Motors. Race-ready and battle-proven, this manual tensioner takes the guess work out of your stock chain tensioner. To those in the know, this thing is worth it’s weight in BILLET. -MADE IN USA (LAS VEGAS TO BE EXACT) -6061 ALUMINUM HOUSING -10-18 STEEL ADJUSTMENT SCREW -RACE-PROVEN – RACE-READY Visit here:- http://bit.ly/2FpA108