I am at 12000 miles and averaging 17 mpg with mixed driving. Looking to add after-market exhaust and performance tuner. What combination truly improves mpg?

although the juice is the most popular box on this website I have seen the hypertech add between 4-5 mpg on two different trucks. I agree that the juice is the better box as far as power goes, but I have yet to see one add fuel economy like this. just my $.02

Axle,

We get reports on the Edge, Predator (Programmer) by Diablo that are up to and sometimes over 3 MPG increase. DO NOT I repeat DO NOT buy any of them just for MPG increases, you may or may not get the same as the truck built right before or after yours it's all over the place. You should get a nice MPG gain with any of them, but don't expect miracles etc.

Exhaust even gets us reports of MPG gains, but we don't promote sales of exhaust based on MPG gains as we can't guaranntee them. Get an Edge/Predator, and MBRP exhaust and an AFE pro Guard 7 intake systems and you should see MPG, but mostly you 'll see a totally new and better truck as far as daily driving and towing capability. We have been selling them for years, call us if you have questions etc and we will be glad to help you.

Mark @ DPPI

I have an LLY, just ordered a tuner, exhaust and air intake system. Should have rest of the products by the weekend. Installed the exhaust this past weekend.

I noticed a slight MPG improvement with just the exhaust, so far this week. Combined, I'd be very happy with 4 more total. Might be a bit higher than that, as my air cleaner was getting dirty and not breathing as well as it should. I've got about 27k on the truck.

This certainly doesn't seem like a bad route to go. Whether or not I got the best brands out there, I dunno, but I spent less than $900 on all 3.

I hope you do not think you will realize a mpg gain. I purchased an mbrp exhaust (cat back) and edge/***. I ran the edge in level 1 very conservatively to check for a mpg gain. I compared it to a similar trip I had taken before and actually noticed a 1 mpg loss. Buy these products for the noise and the added power but dont buy for mpg gains.

Eric

No one makes a “performance tuner” for MPG gains that I’m aware of, interesting thought though. Wouldn’t it be something if you could have an “economy” mode on your tuner, maybe back the power off just a wee bit (back to say LB7 levels or so) to get you serious MPG gains. Then when the need (i.e. a ricer, hemi, heavy load etc.) arose you could bump the “economy” mode back to a “performance” or “tow” mode and get the job done then go back to “economy” and get good MPG’s.

Flame suit on and secure... Just in case ):h