These are the bolt-on ones, right? You do not want these. Get a regular set of weld-in's (either regular or full length), and have a muffler shop weld them in. Labor will cost you around $80 to install the regular length. If considering regular length (very good for non-hardcore applications), Kenny Brown's super subs are a good product ... you can find them for $90 if you look around.
I just won a set off of eBay for $12
I will either weld these in or use them as templates to make my own.
I do agree about the bolt in part, weld in is better.
Either way, something is better than nuttin.
why would you waste your money, i had stock subframes on my car. just recently had kb's welded in and there is no comparison. Take those back and buy a real pair. Hell if you would have posted this a couple of weeks ago, i would have shipped you the stock junk