2001 buick regal supercharged. 2001 buick regal gs fwd 4 speed automatic with overdrive 38l v6 sfi series ii supercharged 4 speed automatic with overdrive. Basic mods rebuilt enginespeed daddy headerszzp pulleyzzp spark plugsvogue tyremustard and mayobuick regal gssuperchargedbuick. 2001 buick regal gs supercharged 38 v6 from the factory specs are 240hp 280 tq gas mileage 23 city 28 highway mods. Racing spark plugs wires ignition coil box computer cold air intake.