hi, i am new to the site. have had my 2003 duramax 2500hd for two years now and it is completely stock minus a k & n air filter. I started to pull campers on the weekends for extra money with it. i would like to get the best fuel mileage possible, have a couple extra horses under the hood when pulling, but not hurt the transmission. it has about 150,000 miles on it if that matters. lets here what you would do if you were me. don't want to go broke doing this though.
new to site
- Thread starter LOOSECANNON454
- Start date
Welcome to DD 
This is a pretty good deal
http://www.duramaxforum.com/forum/creatures-night-performance/116656-lb7-pretuned-ecm-deal-year.html
This is a pretty good deal
http://www.duramaxforum.com/forum/creatures-night-performance/116656-lb7-pretuned-ecm-deal-year.html