Those are a [Edited by Moparts - Family Friendly Site - Keep it clean] to install as they require mucho trimming to fit and extensive welding to secure. Plan on gutting the interior to avoid setting your carpet on fire.
Make it simple. Use Competition Engineering bolt in units and weld the ends instead of bolting them. They provide a huge increase in rigidity, only take a few hours to install, and cna be removed later if you really want them out. Oh, these are half the price of the contoured conenctors too.
