Has anyone used these before?

Grand Prix 97 03 1 7" Drop Suspension Black lowering Spring Springs 450lb 250lb | eBay

I haven't thought about lowering my monte for awhile but was just looking around ebay and came across these. They seem really cheap price wise but not sure if they're cheap quality wise. Any feedback would be greatly appreciated. Thanks

 

Think those are what I'm running on the front of my car, rid quality isn't the greatest but if u want a cheap drop its the way to go

 

Never seen these before. I'm running Canuck Motorsports lowering springs on my 06 and so far they're doing the job nicely, especially paired with the Bilstein HD's. CM's run about $150 for a set and are available for the 00-05 Monte; drop the front 1.7" and the rear 1.5".