I tried to install a pair of really nice leather buckets from a late-model GTO....but, it appeared like it was going to be a project, so I bailed on the idea. I think the side-curtain triggers are built into the stock seats rails...so you might want to try and adapt the new seat "shell" to fit your stock rails. You can unbolt H3 seats (along with the rails) in about five minutes. Flip one over and you'll see the dohinky I'm talking about. I ended up bolting my stock seats back in place but, it did give me an opportunity to clean-up some missing coins and french fries that were hiding next to the console.