I am the proud owner of a 2005 duramax diesel CC S/B 4X4. After just 1 week, so far I LOVE IT.....I pull a travel trailer 6500LBs, but mostly just drive it to work. There are alot of different upgrades i read about here, but what would you guys recommend i upgrade for the first few things. i see trans upgrades, air cleaner upgrades,exhaust upgrades...ect...Just want to get your opinion....Thanks for the read....

Well I am not a tech, and don't know a whole lot to boot. With that said, the first thing I would upgrade would be your injectors.:joke: My take is that the stock air cleaner is good and the so called "upgrades" aren't worth it. Do you want to use a programmer/chip and run at higher power levels? If not, the only upgrade I would consider would be a 4" exhaust.

Since you are looking for a variety of opinions, you might use the search feature to see what others have recommended in previous posts.

A set of Bilstein or Rancho shocks would really improve the ride & handling of your truck, especially when towing your trailer.

thanks for the tips guys...marky-i do plan on getting a programmer in the future, but right now, just the little things.....does the injectors void the warranty if i replace them...

thanks for the tips guys...marky-i do plan on getting a programmer in the future, but right now, just the little things.....does the injectors void the warranty if i replace them...
I was just kidding about the injectors. Only (very) high horsepower guys are even thinking about modified injectors. I really like my truck, the only cloud being the failure rate for the injectors. I like the idea that deadfurrow suggested about the shocks, but need to wait until after tax season before doing anything more. I don't like the ride when I am unloaded and I know its more than just tire pressure. I also hope to add an in bed aux fuel tank some day.

Here are some things I have done, but I think of them as necessities. Fumoto drain valve (if you change your own oil). B&W gooseneck hitch, prodigy brake controller. Cab steps, seat covers, floor mats,

It all depends on what you want to do with the truck. Programmers for additional HP. Exhaust system for reduction of EGT's and less restriction. Tranny upgrade for holding the additional HP. Lift and larger tires. I'd start with an exhaust and chip (inline reprogrammer or downloader) and guages if you want more power. Otherwise start with the cosmetics (tires suspension etc.). Don't do injectors. It will void the warranty on them. You should do things that you can remove when taking it to the dealer for service so there won't be as much of a chance for warranty issues with the dealer.

My truck is a little over a year old and if you look at my sig, you'll see what I've done.

The last thing I added was the gauges in Novemember, which I bought in April of last year. Most of the things I had added by the dealer prior to taking delivery.