Tuning Issues

[Huff250]

I keep reading that the 6.7 breaks so easily. I am interested to here everyone's experience on tuning so that we can get a good idea of the ratio of issues with tuning.

[Mr Powell]

6100 miles. Two different tuners. I went Edge at first due to being cheap and "I'm never going to do DPF delete"... 5k miles I put H&S XRT Pro and AFE Delete pipe. At 6200 miles and no problems yet. I am knocking on wood right now just in case LOL!

Back in 04 I had the last of the LB7 Duramax's (2004.5 LLY or whatever was released) with a Edge w/ Attitude @ 125 and BD Power Pup @ 155. That truck was abused for 80k miles with no problems and that includes the trans (stock). I saw a lot of people frag transmissions but it was simple as not being an idiot and shifting into 5th and riding out the gear.

There will always be failures sometimes due to weak parts that came from the factory (that are weaker than most others) or hiccups in code, etc. You see more post about failures than how awesome it is. Always remember that for every forum about cars.

[Huff250]

Thanks for your post. I love my truck, I get tired always hearing of problems.

[jeffc]

Originally Posted by Huff250

Thanks for your post. I love my truck, I get tired always hearing of problems.

I'd be willing to bet that some people who make these statements don't even own a 6.7. I'm not tuned, but will certainly entertain the idea down the road, mostly for the EGR benefits and increased fuel efficiency since I don't have much use for a 4 ton race vehicle. There are plenty of guys running tunes with success. I don't recall any of them having catastrophic failures directly linked to a tune. I do recall a few turbo failures, though.

[jcatchem]

I've been tuned with xrt pro and delete pipe for 6k miles, pulling a 16k lbs backhoe for half of them. No problem at all. Improved the fuel mileage by 2.5 mpg, hand calculated.

[Huff250]

I am planning on waiting for a few more miles before I tune. I have 5500, I figure I will wait until 20,000 just to make sure there are no issues.