I + the detail and some modernizing mods for the interior, etc....Overall the engine and drivetrain of these trucks is so finely tuned already there is justa few things you can do without shelling out some serious dough. Deckplate mod is probably the biggest and only mod you would do to the engine for below a $100....Next would be some headers and exhaust...Check eBay for headers and exhaust (I am sure some people will flame for that, but its cheap and works for the price.) Additionally with exhaust, you may want to ensure that you have a specific sound/tone to your vehicle when you drive, so you may want to research some mufflers...Keep us posted!! Good luck!