2025 Toyota 4Runner Engine Upgrades

Cold Air Intakes and Intercoolers: Two Key Upgrades for More Power

The 2025 4Runner’s turbocharged engine already packs solid performance, but a few smart upgrades can help it run stronger and more efficiently. Two of the most effective bolt-ons are cold air intakes and intercoolers.

Cold air intakes improve airflow to the engine by drawing in cooler, denser air. This boosts throttle response and can unlock modest gains in horsepower and torque. Many systems feature reusable filters and sealed housings, making them ideal for off-road or dusty environments.

Upgraded intercoolers help manage intake temperatures, especially under heavy load or long climbs. By cooling the compressed air from the turbo, they reduce heat soak and keep performance consistent. This is especially valuable for i-FORCE MAX hybrid models where torque output is high and engine temps can climb fast.

Together, these upgrades lay the groundwork for a more responsive and reliable build. Pair them with a quality Exhaust System or Tuning Module to get even more out of your 4Runner’s drivetrain.