Wesley Kagan, engineering mastermind and automotive Youtuber joins the show to discuss how he built his own version of "Freevalve" technology and stuck it on to a Miata. That and more, today on Automotive ADHD! Help support the show! patreon.com/throttlewarrior Send your car sounds to matt@throttlewarrior.com to be featured on the show! https://www.facebook.com/AutomotiveADHD