Hey
@Nolan.637 welcome to the Stinger forums, and congrats on getting your 2019 Stinger GT.
We've been selling the JB4 from Burger Motorsports since 2016, for over 10 years now.
I can tell you that not only is it ultra-reliable, but it really wakes up the Stinger like no other.
I'm not really sure where your trust concerns are coming from, but BMS is a very reliable brand that has been around for over 20 years now.
Feel free to read some of the "Verified Buyers" reviews on our website below from actual customers who have bought the product:
Kia Stinger - Burger Motorsports - JB4 Tune - K8 Stinger Store
You can read more about the JB4 and how it works here:
What is the JB4?
The JB4 is a plug & play tune available for turbocharged vehicles. The JB4 tuner installs between your car's sensors and its DME/ECU (computer) and manipulates vehicle performance through these connections making your vehicle much faster. While it's not the only tuning system that operates this way, the JB4 separates itself from the competition with much more advanced connection points and processing, including CANbus, fuel & spark control, Bluetooth to your smartphone, and a variety of innovative and advanced features not possible with any other system. BMS regularly publishes free mapping and firmware updates adding performance and features as ongoing development allows. In addition, the JB4 system is not VIN-locked to your vehicle and can quickly be removed and swapped between cars or resold at a later time. Often imitated but never duplicated the JB4 has been the gold standard in plug and play turbocharged performance tuning for over a decade.
Find it on our site here:
Kia Stinger - Burger Motorsports - JB4 Tune
Let us know if you have any questions we can help with.
-David
K8 Stinger Store