well its a 2006 v6 4.0 automatic..already very fast when i bought it 8 months ago still very fast but i want it even faster..

what can i buy to make it faster and is it gonna cost me alot of money..

CHeapest thing is cold air intake... 200 dollars tops should add 5 horse power.... change exhausts around 1000 for good ones should add around 8 horse power..... change all filters to k and n filters around 250 bucks should add 4 horse power.... and of course a supercharger you are looking at about 4 grand or a good one.

Not much you can do to a Ford V6 to make it fast. If you want fast you need to replace the engine with a 427ci V8 (351ci with one of the 427 stroker kits).

The most common "go fast" fix up for car engines is to improve the breathing...try headers as a first option and some type of cold air intake with a K&N air filter...good luck

the best thing to buy to go fast is a car. use the truck for what it was designed to do, but if you insist then a cai and full exhaust are the first steps.