Case Studies

Real testimonials from our customers:



Vehicle: 2005 Saab 9-3 Aero 2.0L

“I would go on file to say its one of the best preprogrammed chips i have used. I would recommend this to any saab aero or saab user. There is so much torque steer. It wants to take off. Do you have a chip to help keep the car on the ground”

–Marc, Australia



Vehicle: Toyota FJ Cruiser

“I am un believably happy with the torque and hp gains”

–Nate, USA



Vehicle: 2009 Toyota Camry

“This is the best chip I’ve used by far, and I have tried many. Very noticeable improvement in response and power, very impressive, thanks guys!”

–John, USA



Vehicle: 2013 Cadillac XTS

“What a difference! Smoother shifting, better pickup. This is the real deal. I will definitely tell my friends.”

–Roy, USA



Vehicle: 2013 Nissan Altima

“Put it on my 2013 3.5 sv Altima just to see what happens. it said about 2 weeks you’ll notice power increase. In like 3 days im breaking traction from a deadstop at every traffic light. The Torque increase is immense, and I still haven’t even topped out the car yet. The throttle response has become butter, and gear change is seamless, even while CVT. Im so excited to see final hp & ft/lb gains when it fully registers the engine. 1000000% Best purchase for this vehicle..”




Vehicle: 2005 Scion xB

“I recently purchased the ST7 for my 05 Scion XB.The little motor runs smoothly and has little more peep about and I got 34 and 38 more miles on a tank about 3.8 mpg more. Thanks”

–Bryan, USA



Vehicle: 2014 Ford Edge

“Increased gas mileage 2.5 mpg so far. “

–Harry, USA



Vehicle: 2007 Dodge Ram 1500

“Increase in throttle response, HP, and overall performance. Absolutely the best. “

–Dane, USA



Vehicle: 2001 Porsche Boxster (base 2.7)

“There is noticeable increase both throttle response and mid range torque. This device also fixed a slight hesitation in the engine when cold. I was cautiously optimistic but am now very pleased with the results. “

–Dean, USA



Vehicle: 2016 Chevy Cruze limited LTZ

“The ST7 pro performance chip I got from you guys definitely works!!, Better throttle response an less turbo lag! “

–Max, USA



Vehicle: 2015 Ford Focus

“Item is as described..I noticed a difference first day it was hooked up..”

–Tom, USA



Vehicle: 2009 Scion xB

“Pushed my scion xb over 30 MPG on trips well worth it”

–Ken, USA



Vehicle: 2008 Mustang GT

“Installed in my 2008 Mustang GT great throttle response and torque increase very happy with this product.”

–James, USA



Vehicle: 2015 Chevy Silverado 1500

“Chip works! Great improvements in acceleration!”

–Ted, USA



Vehicle: 2006 Buick Rainier 5.3L V8

Great Tuner! I immediately noticed better throttle response and that third to overdrive gear lag went away! It took about 200 miles before it completely tuned. 

Noticeable gains include:

Throttle response (immediate upon installing)
Transmission shifting improvement (removed that lag when A/C on between third and overdrive)
Highway passing 55 to 75… Huge gains in 55 to 75mph and very smooth and noticeable power gains
All around smoother idle
2+ mpg increase in city and highway 

Cons: For the first 150 miles gas mileage actually reduced, but then slowly became better. Seriously I thought this was all bull but it truly works

–Todd, USA



Vehicle: 2007 Ford Sport trac 4.6, 2012 Infinity G37X, and 2006 Infinity FX35

“All 3 have improved performance and 2 to 3 mpg in town and 3 to 5 mpg on the highway.
Thank you Sawyer Tuning

–Richard, USA



Vehicle: 2001 Jeep TJ

“I was skeptical, but this thing actually made my Jeep faster!

–Robert, USA



Vehicle: 2011 BMW 328i

“Instant noticeable gains upon starting my bmw e91. Highly recommended

–Addison, USA



Vehicle: 1999 Lincoln Towncar

I have been using Sawyer Tuning OBD plug in performance tuners since 2011 on my former 1997 to late model GMC/Chevy full size trucks, late model Camaros, and especially now on my 1999 Lincoln Towncar. There are more cars on the road now, they move faster, and sometimes you really need extra horsepower. I have had zero problems with the ST tuners, either mechanically or with warranties.
They are relatively cheap, easy to use, and don’t seem to lower MPG at all in normal driving. If your foot behaves you can get better MPG than stock. And most importantly, when you really need the extra HP your vehicle has, it now becomes available to you. Enjoy!

–Al, USA