Ok, A month or so ago I asked you all about Wynjammer Superchargers. Not a lot of replies but I bought one after talking to the owner of the company and I put it on my 2000 4wd 2500 crew cab. The install only offered a couple of think outside of the box challenges, which I solved. With the hardware came a new ECM. Understand the only reason I did this is to have better pulling power to pull my boat. I plugged in a hand held analyzer that after a brief lesson determined if I was running lean when I got on it and passed the test. This was my biggest fear. It’s my understanding that if you race you will need to get bigger injectors. I considered changing gears but didn’t want to make the already bad gas mileage worse. My gas mileage has indeed improved. How much I haven’t crunched the numbers. The install took about 4.5 hours. You do have to run 92 octane. The result: As far as off the line acceleration I am thrilled. I never thought that 5.7 could do what it’s doing. The wine takes a little getting used to. I have not pulled the boat yet so as far as the real reason for the install the jury is still out. But will soon. The unit cost about $2,600. It brought new life to the old rig and the best part I still don’t have a truck note but a truck with a new attitude. It’s nice Thought you might like to know Bud Oh yea that's me a few years ago fishing is sunny Fla.