My son picked up 32 Champion 570's today at his jobber cost- he is a second year truck & coach mechanic, so I got enough Champions for my 07 GC hemi and his 07 Ram for the price of one set from the dealer, will be installing them shortly.
Changed plugs today and it went smoothly. Also pulled throttle body as there was some grime on the face of it- good thing too as the back was caked pretty heavily in soot and carbon buildup. Cleaned it and reinstalled. Installed a ground wire from throttle body bolt to the neg battery terminal. Since we disconnected the battery to work on it the engine had to relearn idle it seems but it is now running smooth and strong. Needed some work to access all the coil packs and plugs but not bad at all.