Ultimate tuning and performance box?
Any one hear or have this box on there truck Ultimate tuning and performance. i go this off ebay for like $30 and they say its good for 50 hp and better fuel mileage. i havnt now put this on my truck yet kind of waiting to hear if i should. Thanks
i also seen them on e bay they say there completely safe i dont wont to say this but i will $30 for something that is really going to give some ponies an save diesel this would be great but if this $30 part would short something out not so good well let us know if it works because i would hop all over one if it does just be carefull




