im definitly interested in a few items to help horsepower......i mean it dont feel any different with 4 alts then it did with 2 but i could always use extra power. Electric fan is definitly in the question......watsup with this tune you speak of, i have the crap hypertech but i want the real deal. Can i use both? I AT LEAST need the hypertech to adjust the 26's to my speedo.....thats probably the best thing about it I personally have a PCM tune from PCM4less.com. Bryan Herter is a great guy that can answer any questions you might have. I've heard great things about Jesse Bubb who owns Wait4meperformance.com. Some of the things they can do for you are listed. -get your engine tuned for a particular octane 87, 89, 91 or a dual tune 87-89 or 89-91 (just means you can put any gas in that range to get things going). The higher the octane the more horses. -eliminte some or all torque management. This helps with dead stop take-off. -firmer shifts. This will actually help with the life of the tranny. The quicker it locks into a gear, the less time the tranny belt has to heat up (heat=quicker wear and tear) You won't really feel this unless your on the gas a lot, so a smooth ride at cruising speeds is still obtainable. - 20-30hp more at the wheels. Your hypertech only scrathes the surface of the potential of the truck. - You can adjust for your 26" tires This is not a handheld device. You can send you PCM to them or they may have a PCM in stock for your vehicle they can send you. That way, your not out of a truck for 5 or so days. My best advice is to call either one up and talk shop with them. Both great guys and you can't beat the rice for what you get. If you got any more questions PM me. Good Luck!!! I love to see 20-30rwhp... Just not gonna happen on a totally stock motor. Tuning a stock motor is like fixing something that is not broke. He dont have a diesel and hidden HP. Waste of time bro. I have a 302 Mustang, Ive seen tuning done on a dyno, and they gained maybe AT MOST 10rwhp. I've seen Herter pull ~20hp out of a mostly stock vehicle on a dyno.