There isn't really anything that is cheap. You have improved the air coming in. You could get a high flow cat to improve the exhaust going out but I'm not sure how well it will work. I've heard that Ford put a higher flow cat in the 4.6s for our trucks and that is how they boosted the paper horsepower from the trucks before.
The old saying still holds true even for trucks, gotta pay to play. Going fast isn't cheap.
|