Well you could go to a junk yard and get a winsheild washer tank and pump and run a hose into youexhaust and fill the tank up with atf, motor oil,diesel, gas lighter fluid:ft: ......what ever you want and hook the pump up and put a switch in the cab and have fun. Drill a hole close to the down pipe and put a metal tube and then hook up to thew tank!!! :hehe: No extra horse power just smoke lol.
If you want cheap smoke put a bag over your air filter, wouldnt recommend it though but if you really want smoke get a custom tuned TW chip with a smoke tune