Exactly what do you mean? You don't need to do anything special to install them as long as you have the gaskets you need. You will need the down pipe welded to your cat.
I herd that you have to flip the sway bar and bend the trans dipstick tube, I was wondering if this is true and if you have to do any thing more to get them to fit
Some experience the downpipe hitting the sway bar. Flipping it won't hurt anything, so you might as well. You can bend the dipstick or get a Lokar stick for a 700R4. It's the same length as a Wbody.
A forum community dedicated to all General Motors makes and models owners and enthusiasts running the 3800 series engine. Come join the discussion about performance, modifications, classifieds, troubleshooting, builds, tunes, superchargers, maintenance, and more!