HUGE HP Loss from Air Filter? Procharged LS / Back to back Dyno Test!

This is a back to back test of a 900 RWHP Procharged LS engine. Air filter v/s no air filter! How much power do you think it killed? Results are crazy! ------------------------------------------------------------------------------------------------------------------------------------ http://www.TurboJohnRacing.com The Drag Racer's Wife sub to her channel:    / @thedragracerswife   Every Wednesday Turbo John talks LIVE with members of his YouTube channel. Learn insider secrets, ask questions or share info about your own racing program, and hang out with the Turbo John crew! Join here:    / @turbojohnracing   Thomas Racing Service: Jeff Thomas No Prep Struts The Brake Man: https://www.tbmbrakes.com Black Sheep Industries: https://blacksheepindustries.ca/ Tin Soldiers Race Cars: https://tinsoldierracecars.com/ Check out the Jegs Pit Mat here: https://bit.ly/3Iq9Vc1 Forced Inductions: https://www.forcedinductions.com Cam Specialist, turbo needs: https://www.GetFPP.com Mod Series Shocks: https://qa1.net Torque Converters: http://www.hughesperformance.com