If you’ve owned a 3rd gen 4Runner for long enough, you know the 3.4L 5VZ-FE isn’t about massive horsepower numbers — it’s about usable torque, reliability, and smooth power delivery on and off the trail. The AIRAID PowerAid Throttle Body Spacer is designed specifically to improve throttle response and low-to-mid RPM performance where your 4Runner actually spends most of its time.

Whether you're climbing steep fire roads, hauling camping gear through the mountains, towing dirt bikes, or just trying to wake up your daily-driven 4Runner, this is one of those simple bolt-on upgrades that makes the truck feel more responsive without sacrificing reliability.

The AIRAID PowerAid uses a unique Helix Bore design that creates a spinning motion in the intake air as it passes through the throttle body. That organized airflow helps improve atomization of the fuel-air mixture entering the combustion chamber, resulting in stronger torque gains between roughly 800–2500 RPM — exactly where lifted and armored 3rd gen 4Runners tend to need help most.

Unlike questionable “performance mods” floating around online, this spacer is fully CARB legal with EO# D-609 and installs with no cutting or drilling required. Everything needed for install is included in the box.

Machined from aircraft-grade 6061-T6 billet aluminum and finished in black anodizing, the PowerAid Spacer looks right at home in a clean engine bay while offering a durable, corrosion-resistant finish built for long-term off-road use.

For many 3rd gen owners running larger tires, rooftop tents, armor, recovery gear, or overlanding setups, restoring throttle feel and drivability becomes a bigger priority than chasing peak horsepower numbers. This upgrade helps your 4Runner feel more alive around town, smoother on technical trails, and more responsive merging onto the highway.

Fits 1996-2002 Toyota 4Runner 3.4L V6 models.

Key Features

• Designed for 1996-2002 Toyota 4Runner 3.4L V6
• Improves low and mid-range torque
• Enhanced throttle response
• Helix Bore airflow technology
• Aircraft-grade 6061-T6 billet aluminum construction
• Black anodized finish
• Includes all gaskets and mounting hardware
• No drilling or cutting required
• CARB legal EO# D-609
• Made in the USA
• Installs in under an hour

Why 3rd Gen 4Runner Owners Like This Mod

A lot of 3rd gen 4Runner owners ask whether throttle body spacers actually make a difference. On high-revving sports cars, gains are usually minimal. But on heavier off-road builds running oversized tires and extra gear, improving low-end throttle feel can make the truck feel much more responsive.

This mod is especially popular with:

• Lifted 3rd gen 4Runners
• Overland builds
• Daily drivers with larger tires
• Camping and trail rigs
• Trucks carrying armor, roof racks, or RTTs
• Owners looking for simple bolt-on upgrades

Vehicle Fitment

Toyota 4Runner

• 1996 Toyota 4Runner 3.4L V6
• 1997 Toyota 4Runner 3.4L V6
• 1998 Toyota 4Runner 3.4L V6
• 1999 Toyota 4Runner 3.4L V6
• 2000 Toyota 4Runner 3.4L V6
• 2001 Toyota 4Runner 3.4L V6
• 2002 Toyota 4Runner 3.4L V6

Additional Tacoma fitments available.