go ahead and spend some money- don't cheap your way out. edge products (ez, juice+attitude) are well worth the money. my ez got me 2+mpg. bullydog also got 2+, good product, and of course the smarty programmers are well worth the money. seems like all the programmers will smoke more than the plug in modules. As far as gauges, i prefer analog and will be getting some asap to replace my commander