Who is it for? 2021 and newer Ford Bronco, 2.3L or 2.7L EcoBoost.
Why start here? Because it is the cheapest real gain on the truck, it needs no tune, and you can do it in your driveway.
When it is time to squeeze more out of your Bronco, and really, when isn't it, a cold air intake is an excellent first step. Whether you are chasing efficiency or horsepower, here is everything worth knowing before you buy.
What a Cold Air Intake Does
The short answer: it draws in more cold air so the engine runs more efficiently and makes more power.
The slightly longer answer, without a trip back to science class. During the intake stroke, the induction system draws air into the cylinder. Cold air is denser than warm air, which means more oxygen in the same volume. More oxygen means a bigger, more complete burn when it meets fuel on the compression stroke. A bigger burn is more power at the crank.
How Much Horsepower
A good kit will add power. Expect somewhere between 5 and 15 horsepower, and be a little sceptical of anyone claiming much more from an intake alone.
Gains differ between the 2.3L and the 2.7L, and they differ by kit design. That range is honest rather than optimistic.
The Benefits Beyond Power
A good kit does not just move more air, it moves the right amount of air compared to the factory box. That helps the engine hold an optimum fuel/air mixture, which can show up at the pump as well as on a dyno.
- Better throttle response. The most noticeable day-to-day change.
- Induction sound. You will hear the turbo work. Most people consider this a feature.
- Efficiency. A properly matched intake helps the fuel trims settle, which can help mpg on a light foot.
- Reusable filter. Most performance kits use a washable filter instead of a disposable paper element.
Do You Need a Tune?
No. You can fit a cold air intake to a Bronco and drive it without touching the calibration.
You will get considerably more out of a tune once you have stacked a few more modifications alongside the intake, which is the smarter sequence: intake now, tune when there is something for the tune to work with.
Which One to Buy
Four options worth your attention, and they suit different priorities.
Roush engineering and fit
The safe all-round pick
Pairs naturally with Cobb tuning
Strong choice if you plan to tune later
Dry or oiled filter options
2.7L version also available
The off-road answer, not the power answer
Both engines
The cheapest step up from paper
Washable and reusable
Browsing more broadly? See the full Air Intake collection.
Frequently Asked Questions
Does a cold air intake add horsepower to a Bronco?
Yes, typically 5 to 15 horsepower. The exact figure varies between the 2.3L and 2.7L engines and by kit design.
Do I need a tune after installing one?
No. You can fit an intake and drive without retuning. You will get more from a tune once you have added a few other modifications for it to work with.
How hard is the install?
Straightforward. There are few components and everything bolts to the factory mounting points. Budget an hour with basic hand tools.
Will it improve fuel economy?
It can. A properly matched intake helps the engine hold an optimum fuel/air ratio, which can help mpg if you drive gently. Drive it hard and you will use the extra power instead.
Is a snorkel the same thing?
No. A snorkel or elevated intake raises the air pickup for water crossings and dusty trails. It solves a different problem and it is not a horsepower part.
Dry filter or oiled filter?
Dry filters are simpler to clean and there is no risk of over-oiling contaminating a MAF sensor. Oiled filters can flow slightly better. For most Bronco owners, dry is the easier choice.
What will I actually notice?
Throttle response and induction sound, immediately. The horsepower is real but modest, so set expectations there.
Keep Reading
Not sure which fits your engine? Call 877-2-LETHAL or email us.
Start With Airflow
No tune needed, an hour in the driveway, and the first real gain on a 2.3L or 2.7L Bronco.
