With the release of the 6th Gen 4Runner, Toyota made a major shift to a turbocharged platform, just like the rest of their truck lineup. The new 2.4L engine delivers solid performance out of the box. But like most factory setups, it’s designed with restrictions in place for noise control, emissions, and long-term reliability.
For those of us building our 4Runners, adding weight, bigger tires, or simply wanting a more responsive driving experience, airflow becomes one of the first limitations we notice. That’s exactly where the Banks Ram-Air Intake comes in.
Table Of Contents
What Sets This Intake Apart?
This isn’t just about adding sound… It’s about improving how the vehicle breathes, performs, and responds in real-world driving conditions. There’s no shortage of intake options on the market, so let’s take a close look at the Banks option.
Proven Horsepower & Torque Gains
On the 2.4L turbo platform used in the 6th Gen 4Runner, Banks reports gains of:
- +18.3 horsepower
- +17.7 lb-ft of torque
These gains come from a simple bolt-on intake—no tune required.
More importantly, the increase isn’t limited to peak numbers. The added airflow reduces restriction at the turbo inlet, which is said to help:
- Bring the boost on sooner
- Improve throttle response
- Expand usable power across the RPM range
In real-world terms, that translates to a 4Runner that feels more responsive in daily driving and off-roading, not just on paper.
Dual Inlet System
One of the standout features is the dual air-inlet design, which draws air from a forward-facing ram-air scoop and a secondary fender inlet. This setup helps deliver cooler, denser air, improving combustion efficiency and overall engine performance.
Increased Airflow Capacity
Compared to the stock system, the Banks intake offers a significantly larger inlet area and smoother, less restrictive airflow path. For a turbocharged engine, this means the turbo doesn’t have to work as hard to pull in air, something that directly impacts both performance and efficiency.
Built With The Turbo In Mind
Unlike intakes designed for naturally aspirated engines, this system complements the turbocharger by supporting smoother boost delivery, reducing restriction under load, and improving mid-range power.
Installation
One of the best parts about this upgrade is how simple it is to install. If you’ve done even basic mods before, this is completely manageable. With an estimated time of around 30 minutes, you can complete it during your lunch break.
- 8mm, 10mm socket
- Socket extension (optional)
- Flathead screwdriver or any pick tool for removing the fasteners
Step 1. Disconnect Battery
Start by disconnecting the battery to avoid any electrical issues during installation
Step 2. Remove Factory Intake
Remove a total of 5 push pins that are securing the front fender inlet. Be sure to keep these; they are reusable and will be transferred to the Banks Power unit.
Next, unplug the MAF sensor. Be careful not to pull on the wire harness.
Next, unclip the tab holding the sensor line.
To remove the air filter, unlatch the 2 silver-colored tabs on the side of the airbox. Then, remove the upper airbox by loosening the clamp found attached to the factory tube.
Pull out the lower airbox (mounted with 3 rubber grommets). Be sure to keep these grommets as well; they are reusable and will be transferred to the Banks Power unit.
Loosen the upper and lower clamp at the turbo inlet enough to remove the tube.
Remove 2 screws securing the sensor. The Banks kit comes with new screws, so you don’t need to save these.
Finally, remove the MAF sensor from the airbox cover.
Step 3. Transfer Components
Install the factory MAF sensor into the Banks intake tube.
Next, move over the 3 rubber mounting grommets from the factory airbox.
Cap the outlet for a snorkel if you are not running one; leave it off if you are.
Step 4. Install Banks Airbox
Set the new housing into the factory mounting point and ensure it seats securely.
Step 5. Install Filter & Intake Tube
Insert the high-flow filter securely into the groove.
Check to ensure the filter is properly seated in the housing before attaching the intake tube.
Attach the intake tube and connect to the turbo inlet using the provided couplers.
Step 6. Tighten & Reconnect
Secure all clamps, then reconnect the MAF sensor and the battery. Double-check for any loose connections before you start your engine, and you’re ready to boogie.
Driving Impressions
After installation, the difference isn’t just something you hear, it’s something you can feel. Now it’s worth noting that an air intake isn’t going to blow you away. But it does provide data driven improvements, and if you’re more sensitive to how your vehicle operates you should be able to pick up on the benefits.
Improved Throttle Response
The vehicle feels more responsive, especially in everyday driving situations like stop-and-go traffic or quick acceleration.
Stronger Mid-Range Power
This is where the intake really shines. I have better passing power, smoother acceleration under load, and more confidence when merging or climbing.
Turbo Behavior
The turbo feels more responsive, less strained, and smoother in how it builds boost.
Sound
Yes, you do get turbo noise. But it’s not over-the-top. It’s clean, controlled, and noticeable without being obnoxious. It adds just enough character to make driving more enjoyable without sacrificing comfort.
Naturally Aspirated Vs. Turbo Intake Differences
This isn’t my first intake upgrade. I previously ran one on my Dodge Challenger R/T 5.7L HEMI, which gave me a good baseline for what to expect. But the difference between a naturally aspirated V8 and a turbocharged 4-cylinder is significant. On the V8, the intake mostly enhanced sound and added a bit of top-end feel. On the 4Runner’s turbo platform, it’s a different experience.
With a turbocharged platform, the intake actually improves the vehicle’s driving. I now have a more responsive throttle, smoother boost delivery, and stronger usable power throughout the RPM range. It’s less about sounding faster, and more about being more efficient and responsive.
Pros & Cons
Pros
- Improvement in throttle response
- Stronger mid-range performance
- Clean, refined turbo sound
- Easy, DIY-friendly installation
- Designed specifically for turbo efficiency
- Compatible with a snorkel
- Reusable air filter
Cons
- Higher cost compared to basic intake options
- Not compatible with certain trims (TRD Pro, Trailhunter)
- May lead to wanting additional performance mods (CON? Depends on who you ask)
Final Thoughts
As someone who does most installs at home (usually during my littles’ nap time), I’m always looking for upgrades that are:
- Worth the investment
- Simple to install
- Noticeably effective
This checks all three boxes. It’s quick, it’s straightforward, and it actually changes how the 4Runner feels on the road. As expected, I did NOT get any flags from my Toyota dash or any check engine light. Seems like my 4Runner approved of the new addition just as much as I did.
How It Fits Into a Full Build
The Banks Ram-Air Intake works best as part of a larger airflow system. It pairs well with:
- Exhaust upgrades
- Turbo inlet improvements
- Future tuning
It’s a foundational mod that supports future performance upgrades rather than limiting them.
Is It Worth It?
If you’re planning to keep your 4Runner completely stock, this may not be a must-have. But if you’re building your vehicle, adding weight, upgrading suspension, or dialing in performance, this intake is for you. It’s one of those upgrades that improves daily drivability and enjoyment. And unlike purely cosmetic mods, you actually feel the benefit every time you get behind the wheel.
