Diamond Racing Products www.diamondracing.net +1 877 552 2112 23003 Diamond Dr, Clinton Twp, MI, 48035, USA Diamond Racing Products www.diamondracing.net +1 877 552 2112 23003 Diamond Dr, Clinton Twp, MI, 48035, USA Diamond Pistons is a high performance, high quality piston manufacturer specializing in extreme racing applications. Contact Us Contact Us Latest News