June 29, 201114 yr How much for a 200-220 amp alt for my 2003 Impala..3.8 V6 Btw ThanksYour best bet would be a 240 PRO as its the smallest alt over 200a we make, and they are $349 I believe. It's a large case GM alt, and they'll do ~150 or so at idle, and are much, much better than wasting money on a small case 200 amp alt.. Let us know if we can help, Rob
July 10, 201114 yr Will it feed a SAZ3500D in a 97 Grand Prix se, I got the big 3 with 0 gauge, 2 runs (4 total) of 0 gauge front to back, lookin for some XS3100 batts...SMD 15" here SOON!!!