- Turbo lag
- fuel mileage
- throttle response
So far so good. Very pleased with the fuel mileage and throttle response. Not a lot you can do for either when you’re running 44’s but it definitely gave it some get up and go!
2019 F350 SRW Platinum
Heard about all the amazing reviews, had a friend who has been using them for years with no issues. I bought brand new 2019 F350 SRW Plat, drove it home and installed stealth module, then had a 4" Fabtech 4 link and 37" tires installed. I can't really give a comparison as to how it was over stock since I drove it home and installed module. Seems to have plenty of power, and I'm currently getting 18MPG and will probably eventually get to 20 MPG once I get enough miles on the truck (barely over 1000 now). I mainly drive on Interstate (65 mph) and yes I drive like a grandpa lol.
2016 Ram 3500
This is probably one of my best investments for my truck. I have a 6.5" Lift with 37's on 20" Rims and this Module has made my truck preform even better than it did when it was stock. I drive like a ****** of teenager and i still have seen a 2 mile per gallon increase and my DEF consumption has gone way down. On the high setting (which i do occationally usually i leave it on medium) I can spin these fat tires right off. Definitely recommend this to anyone.
2019 Ford F-250
I purchased the stealth module in hopes for better fuel economy and that’s exactly what I got. I went from 17-19 mpg to 22-24 mpg back and forth to work. 20-22 mpg to 24-27 highway and 10-12 to 13-15 towing 12k plus. Overall a great investment that I’m glad I made!!!!
2012 Ford F350 Lariat Supercab 4x4
Read all the reviews and finally pulled the trigger on one. Took a while to notice a difference, emailed Stealth, he told me to switch from Medium to High setting. NOW I notice a difference! I am new to the diesel pickup world so coming from a 318 gas in a 1500 Dodge to this beast was huge anyway - so it was working but I had a gob of power anyway.. I have not had the truck on a long highway trip yet - but so far around the city I can tell the mpg is better! Big truck with 4" lift and 12.50x35 so anything helps. Power is definitely not a problem now!
2018 Ford F-350
Installation was a breeze only took a few minutes. Right away I felt a little boost in power and fuel mileage. Thanks for a great product.
2018 F350 King Ranch
I love stealth. Much better power and no more sluggish take off. MPG was 13 now 16.5
I have all my acceleration back and then some with 37” tires.
2017 Ford F-250 diesel
Help with turbo lag, will need to go on road trip. Happy so far.
Loving the responsiveness my truck has gained since installing the Stealth Module! Much improved driving experience
I love it! Makes the truck way more drivable. Smoother acceleration, better millage and all around more enjoyable.
2019 Ford F-350 6.7 Power Stroke Dually
After installing the Stealth Module, I noticed the lack of turbo lag and immediate throttle response. Fuel economy is about a 14% increase. This module is well worth the initial investment, would strongly recommend!!!
2017 Ford F250 Lariat Plus
Quick delivery and very easy install. I can tell the difference in the response. Haven't been able to set the fuel mileage increase because of the amount of snow and having to be in 4wheel drive.
2019 Ford F250
Let me start by saying I haven’t had this truck very long. Anyways I was getting 17.5 mpg at the very best. I bought this item in hopes it would make my mpg better and also giving it more power. Well it did just that! I am now getting 20.5 to 21 mph and the truck has more power then I will ever need. I bough the one with the switch between low, medium and high. I have it on high now. If your on the fence take the leap you won’t be disappointed.
2017 f250 diesel
First box was bad. No problem they replaced it I love it throttle response is lot better. It not lazy now. Fuel mileage it seems to have got little better. But the more I drive it the better it is. Like my truck much better now. I would recommend this stealth box to any one. Good job. Thank you stealth.
2018 F250 6.7
Installed the Stealth were averaging 14-12mpg pulling a 14000lb food trailer. We were getting 6mpg before. We couldn’t be happier!
2017 Ford F250
Great throttle response, better fuel mileage and thrice just drives better. Worth the money
2019 F350 Platinum CCLB
As someone who owned the original version of the model in 2016, this current version has come a long way. The truck drives amazing, and I could tell a huge difference after roughly 100 miles. Customer service, as always, is just as great as the feel in the truck. Thanks, Stealth!
When I purchase truck right off the bat I was getting around 18 to 19 miles per gallon put on 35" tires on 20" rims lost a couple miles per ,down to 17,, Installed steath module,,afe cold air intake,,and 5"exhaust DPFBack ,, Averaging 20 mpg highway@70 mph
I installed the unit and set it to the Medium performance setting, and the increased acceleration was obvious. I have not driven enough to have a sure number for increased fuel milage, but it is trending up, slightly. I need a good, long trip to really see what it can do. I recently had to take the truck to the dealer for a recall inspection. I removed the Stealth for the dealer visit, and then reinstalled it at a gas station, a mile or so from the dealership. Easy work and no worries.