33 of 33 Items
33 of 33 Items
4th Gen 4Runner Performance Mods – 2003–2009
Bring new life to your 4th Gen 4Runner with performance upgrades built for rigs that crave more power, smoother response, and stronger drivability on- and off-road. This section is dedicated to improving how your 2003–2009 4Runner feels behind the wheel—whether you're navigating tight trails, pulling long grades, or daily driving with confidence.
These performance-focused upgrades are selected to enhance throttle response, engine efficiency, and overall drivability without compromising reliability. As this category grows, you'll find even more options geared toward off-road power, improved airflow, and trail-ready performance enhancements built specifically for the 4th Gen platform.
Level up your rig with mods designed to make every adventure feel stronger, smoother, and more responsive.