Why choose 4GP Tuning?
At 4th Gear Performance, tuning isn’t just a service—it’s a craft built on precision, passion, and performance. We specialize in Nissan, Infiniti, and Toyota platforms, which means we know the quirks, strengths, and limits of your engine inside and out.
If you’re looking for a fully customized tune, 4th Gear Performance has a solution tailored to your needs. We don’t just push numbers—we push consistency, reliability, and drivability.
Custom Tuning
A Custom ECU Tune is a personalized calibration of your vehicle’s Engine Control Unit (ECU) that is specifically designed to match your unique setup, driving goals, and environment. Unlike an Off The Shelf (OTS) Tune, a Custom Tune is built from the ground up (often on a dyno or via remote logging) to optimize performance, reliability, and efficiency for your exact vehicle and it’s unique upgrades.
This is done by our professional tuner who analyzes data from your car and adjusts fuel maps, ignition timing, boost levels, and other parameters accordingly via the following:
- In-person (dyno or road tuning): The tuner adjusts the tune while monitoring live performance.
- Remote tuning: You collect data logs with a tuning device or software, send them to us, and receive updated maps based on your data logs.