Who makes the best chip or system for a 2003 Dodge diesel.I would like to improve the towing. And donot want to mess the truck up to much.

IMHO I think for a truck that new a programmer is the safest bet. With a chip you have to remove the computer and open the service port to install it. This makes it obvious if you ever have any warranty issues that you've been in there. The programmer will just plug in to the diagnostic port and tune without them being able to know. You just have to detune it if you ever take it in for any significant work or warranty issues. They will never know it was there. Right now the Edge programmer is the leader as far as options and power. Bullydog is great stuff too but just twice as expensive. cost is what drove me to get what I did. shop around. ebay is a great source for that stuff. It makes a huge difference too you will wonder how you functiuoned without it! major tire smoke at your leasure!

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But I hate pringles!!!!!!!!!!!!

http://www.edgeproducts.com/dodge_ISBE.html

this is a realy good one

Thanks, I am looking into the edge, It looks like it might do the trick.