Excellent place! Friendly people A++

I’ve had the Stealth installed on my 2016 Ram 3500 Limited for about a month now and it’s a totally different truck. I pull a 40ft trailer daily with it, and I have it set on the middle setting. No more dead pedal feeling better fuel economy and much more responsive all around. I’m glad I decided to get the Stealth. The truck should have come from the factory this way. Great job Stealth!!

The guys at stealth were great to work with. My 2014 ram Cummins has more power and better fuel economy (about 2 mpg with mixed driving) with the stealth module.

Stealth modules did exactly what they said it would and even more. No more searching for gears while towing and the added mpg is just a bonus. The customer service is better then any company Ive had to deal with. Absolutely recommend Stealth Modules!!

Going into this purchase, I was pretty skeptical of the claims. The shear volume of positive reviews convinced me to take a chance and order one. I am very happy I did. My ‘17 F350 was averaging 13.6mpg and suffered from debilitating lag - especially in the low gears. Installation took no more than 5 minutes. It seriously took me longer to decide where to mount the module under the hood than it did to make the connections. My daily commute is 52 miles each way with 90% light traffic interstate highway and 10% moderate traffic surface streets. In the past three days, I have seen my average mpg increase from 13.6 to 14.9, and I have noticed a moderate decrease in turbo lag and the “dead pedal” feel. For the very reasonable cost and guarantee that the engine warranty won’t be voided, this module is absolutely worth it. I would recommend it to anyone who wants modest performance and economy gains on their diesel without invasive modifications.

This is a very good quality product and has never caused my engine any issues on the 2017 f-450. The performance is there as promised and we look forward to seeing the new products that Stealth has coming to the market. Thank you to the team at Stealth, great work.

Install this module on my 2018 Ram Laramie about two weeks ago and all I can say is WOW!! The gains are impressive. I havent seen a mileage increase, but I have it on the high setting and I cant keep my foot out of it😏😏. Good job you guys I am impressed.

This company has come along ways. They continue to grow and make there product that much better. I continue to support them.

I was caught in the oh so common dilemma of throwing away my warranty for performance and economy or keeping my vehicle stock. After talking to Eric at Stealth this was the best solution. Keep my factory warranty intact but still safely increase my performance and mileage on my 2013 Ram 2500. Ive since picked up around 1.5 mpg all while using less diesel exhaust fluid. These guys have a top notch product with customer service that is second to none.

I was looking for better fuel mileage on my 2013 Ford F-250 Platinum. I saw another product as well out there and decided to do my homework. I checked out the Better Business Bureau and saw one scored an F and Stealth Performance scored an A. I chose Stealth Performance and was pleased with the throttle response as well as the gradual MPG. From here on out it is Stealth Performance Products for me. Keep up the good work!

Since installing this module in my 2018 Duramax 6.6 L5P I have seen my MPG go from 17 to over 20 @ 75 MPH. It really cleaned up my throttle pedal feel! Great product for sure. Customer service is stellar!!

Great Customer service Thanks Eric