Installed a Banks system with Trans Command in our "new to us" 1997 Rexhall (7.5 L V8 powered) in 2006 with 20,000 miles on it. Great support from the factory any time I had a question during the installation. It was a good upgrade as it was just beginning to have the typical stock exhaust manifold issues (cracked rear exhaust manifold bolt). Have put an additional 38,000 trouble free miles on it since then with no problems. Extra power here in the mountains in Colorado sure helps and my right foot stays cooler. Banks is not the cheapest option, but the quality is excellent. YMMV
Best regards,
Lowell