Search by number: 2003 Buick Regal 3.8L 6 Cyl Starter ProAmp 6472 $98.00 each OPTIONS: w/Supercharger ProAmp 6484 $100.00 each OPTIONS: wo/Supercharger ProAmpN 6484N $109.00 each OPTIONS: wo/Supercharger ProAmpN 6472N $113.00 each OPTIONS: w/Supercharger