Drag Racing Tech - lightweight camaro starter ?

need to know who sells them, how much they cost, and how much weight they save...thanks and a link would be appriciated...someones working on their car at my house and is in a bind for a starter and said they would buy me a lightweight one to replace taking mine...thanks

Here you go:

http://www.thunderracing.com/shop-by/vehicle/1998-2002-LS1-F-Body/Ignition-and-Electronics/Starters/

I'm pretty sure I've seen on sites these are a couple lbs lighter than a stock one.

Why not just go to an auto parts store and buy a factory starter?