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GOOD: ST8PRO Stage 3 OBD GAS / DIESEL Performance Chip Programmer

  • ST8PRO OBD Tuner Performance Chip Module
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  • ST8PRO OBD Tuner Performance Chip Module
  • ST8PRO-Dimensionsv2
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    ST8PRO ECU Performance Chip MAX +20HP   WITH LATEST PROGRAMMING The fastest & safest way to obtain a highly power tuned ECU.... read more




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27 reviews





ST8PRO ECU Performance Chip MAX +20HP


The fastest & safest way to obtain a highly power tuned ECU.


Get Maximum Performance From your Engine- Safely!

Installs in seconds. Not only will this module compete with other high priced chips and programmers such as JDM and JET, but it will outperform them – at half the cost! Performance Tuning is one of the most popular solutions to unleash hidden HP and Torque from your vehicle. The ST8PRO Performance Chip programmer / tuner is one of the easiest performance chiptuning modules to install on the market, with a simple plug into your OBD2 port. The performance chip downloads real-time data through your OBD2 connection allowing the module to study your driving habits over a period of one to two weeks to optimize the ignition spark advance, air to fuel ratios and transmission shifting for the ultimate in power and mileage gains, increasing your throttle response, low end torque and acceleration.Proven to provide better street performance, towing capabilities and response. The performance chip will work with all aftermarket performance products, such as Intakes, exhaust systems, mass air flow sensors, throttle body spacers, etc. The chip is smog legal in 50 states, and will not void any factory warranty.



The ST8PRO Performance Chip

– Is a single solution to getting the best power gains
– Directly interfaces with your vehicle’s ECU computer in real-time
– Is dynamic – considers exhaust O2 levels, engine speed / load, intake air and temperature and many other factors to deliver the most efficient tune
– Is compatible with factory equipped Super Chargers, Diesel Engines and more
– Is Plug and Play!

The ST8PRO Chip gets results!


The chip is NOT compatible with Hybrid Engine options, Propane, or Natural Gas


ST8PRO Dyno Run and Benefits
ST8PRO Dyno Run and Benefits



Frequently asked questions


What if my vehicle is Supercharged or Turbocharged?

We usually do not recommend installation with add-on (aftermarket) Turbo-charged models. There is no issue with FACTORY supercharged or turbocharged models.


What if I already have a Power Programmer or Handheld Tuner installed?

No problem. This module will work with all aftermarket power programmers, tuners and OBD2 modules. However, you must have access to your OBD port. The product must be plugged in to your OBD port at all times in order to function.


What if I have an Automatic or Manual? Does it matter?

The chip will work with both Automatic and Manual transmissions.


Will  this void my warranty?

No! This module does not cause any damage, unlike most cheap competitors. This product will not void your warranty. The vehicle manufacturer cannot void your vehicle warranty due to aftermarket accessories. Our module uses soft-patching technology and is completely safe and reversible.


Can this Damage my engine?

Since our performance chip module only interfaces with the vehicle computer (ECU), it causes your vehicle’s computer to adjust itself to a more optimal fuel mixture and timing curve. This means you are fully protected by the built in safeguards of your computer. These performance chips have been tested over and over and are proven not to affect your vehicle’s engine or electrical system in any way, unlike cheap resistor scam chips.


Will this chip work on my vehicle?

It is compatible with 99% of vehicles with OBD2 ports, Years 1996 and newer. If in doubt, ask us.


Is this a resistor scam?

No. It connects to your OBD port. It interfaces with your ECU, not a simple damaging resistor like scam chips.


How much gain can I expect?

Gains vary depending on many variables, but typical gains vary anywhere from 10-18HP or more.


What information is needed to program the chip for my vehicle?

We will need the Make, model and year of your vehicle. (Please send this information at the time of checkout). We CUSTOM program the chip for your vehicle, so you obtain the highest performance.
After purchase, please provide us your vehicle make, model and year.


Supports Most Models of Vehicle Makes:

Acura, Alfa Romeo, Audi, BMW, Buick, Cadillac, Chevy, Chrysler, Citroen, Daewoo, Dodge, Eagle, Fiat, Ford, Geo, GMW, Holden, Honda, Hummer, Hyundai, Infiniti, Isuzu, Jaguar, Jeep, Kia, Land Rover, Lexus, Lincoln, Mazda, Mercedes, Mercury, Mini, Mitrubishi, Nissan, Oldsmobile, Opel, Peugeot, Plymouth, Pontiac, Porsche, Renault, Saab, Saturn, Scion, Subaru, Suzuki, Toyota, Volvo, Volkswagen (VW).

Most DIESEL vehicles are also supported.

Additional information

6 oz





Reviews (27)

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  • (verified owner)

    This company is amazing! They build quality products that truly work. They are their to answer any questions that you may have at anytime. The customer service is truly the best and honest. This is the only performance chip I would buy because it’s real and I know it performs .

  • (verified owner)

    On June 8th of 2019 I bought an ST8 Pro for my Subaru Crosstrek and was extremely impressed with the improved power. For some reason last week, after a lot of troubleshooting, I found out that the ST8 Pro had gone bad. Not to worry, the ST8 Pro has a Lifetime Warranty! The ST8 Pro replacement chip just arrived (11/13/2020), I plugged it in (no Check Engine Light) and it really made my Crosstrek get up and go! I had to turn down my Pedal Commander two notches because of the power gains of the ST8 Pro. Sawyer Tuning did an amazing job with the new ST8 Pro and the shipping was extremely fast! Thank you very much!

  • Owned over 6 mos. Here’s a mini-review:
    Mileage: ? Power: Significant Increase Bonus: Near Constant Hesitation Upon Acceleration…Gone!

  • your chip is amazing it completely woke my car up!

  • I recently purchased one of your Sawyer Tuning Stage 3 (ST8PRO) Chip module for my 2016 Dodge Challenger and noticed changes immediately. By the 3rd day of using the difference was undeniable, I was getting better throttle response and it was switching gears very smoothly (I have an automatic transmission). As far as gas mileage I saw an improvement of 1.5 miles more per gallon. I want from 17.2 miles to 18.7 miles per gallon (average seen in two weeks ) even though my Challenger has one of those 5.7L Hemi engines that are very thirsty for gas . Thank you for the great product.

  • Thank you after driving a bit definitely feel more torque and power

  • Excellent product , very, very satisfied big difference in performance

  • Man this s*** wasnt funny after awhile. I had to take it off my cars suspension needs upgrades had serious changes in speed. Also have add ons. Pretty Nice for 129 .m This is Real

  • (verified owner)

    Made a huge gain in power for my 2016 Subaru Crosstrek 2.0i. It’s no longer sluggish with the AC on with definite low-end to mid-range power. Haven’t tested top-end gains but I’m sure they’re there. And I was told by Support that the warranty IS lifetime, whereas I had a JDM Pro-M with a lifetime warranty, but it was going bad and I called for a replacement and their lifetime is only three years (JDM Pro-M is JUNK and it costs $75 more). I couldn’t be happier with my purchase! Very fast shipping as well! A+ !!!!!

  • (verified owner)

    Shipping was incredibly fast! Ordered Friday night and was here Monday.

  • (verified owner)

    First you will notice the better throttle response. Removes flat spots on power curve. After 250miles-pulls hard. Just get it. Adapts to mods also

  • (verified owner)

    Ran unit for 300 miles on JETTA 1.4TSI. I get used to things fast having owned muscle cars since 16 years old. So I removed unit to see if there were any changes. No doubt pedal had quicker response, less pedal for the same acceleration, and good pull. No mileage change, I have a stick. Worth the money, super fast ship..

  • Works Fantastic. Needs a bit of learning, once done it works great !

  • (verified owner)

    When I first attached the ST8 PRO module I was not sure of any gains I was getting concerning power, torque and fuel economy. But having done over three hundred miles with it, I notice that it does make a difference in the three catergorys mentioned above. Kudos to Sawyer Tuning…

  • (verified owner)

    Immediately made a really big difference in low and mid-range torque and acceleration in my 2014 Kia Sorento Limited. Will report back about gas mileage. Great service and product. This was a good investment. Shipped quickly.

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

  • Made a big difference in my 3.3 Litre 05 Camry low end torque improved tremendously it gets up and goes!

  • Huge difference in low end tourqe,acceleration, even throttle response! Very much appreciated!best upgrade so far!

  • (verified owner)

    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 on my 2001 Porsche Boxster (base 2.7).

  • Increase my torque and Power. In my 2008 Mustang GT. Highly recommended.

  • Huge improvement in throttle response. Effortless cruising, better gas mileage. Fast shipping, Happy customer.
    The best money I’ve ever spent on this truck. Hugh improvement in acceleration and top end cruising.

  • Exactly as described. Thank you.

  • Great product, thanks….

  • The real deal. Installed on my Altima, big difference in power!

  • Great product, thanks,

  • Great Power out of the box works Great

  • A++ Seller and great Product!