THE DEFINITIVE GUIDE TO 4AGE 20V FOR SALE

Absolutely concur, initial items 1st ensure your alternator is really charging the battery so you're having all-around 14V (use a multimeter). Also ensure that you're connections and grounds are all building good Call.These are tuned especially for autos running at larger RPM specially while in the 7000--8,500 selection! Great stability of torque