Description
The Mishimoto MMAI-JLP-18S is a purpose-built air intake system engineered specifically for the 3.6L Pentastar engine found in the Jeep Wrangler JL and Gladiator JT. Built around a precision-engineered, rotational-molded intake tube paired with dyno-tested resonators and a custom air filter, this intake was designed and validated on a dyno to help the 3.6L Pentastar breathe more freely without sacrificing drivability.
By smoothing airflow through the tube and pairing it with a larger filter, the Mishimoto air intake system flows up to 36-percent better than the factory intake, letting the engine pull in more air. That extra flow translated into dyno-proven gains of 10.8 hp and 11.4 lb-ft of torque as tested with the oiled filter. An integrated, dyno-tested resonator keeps that added power in the most usable RPM range, so drivers get real-world benefit rather than just a peak-number claim. The kit is available with either an oiled or a dry washable air filter, letting owners choose the intake filter media that best suits their driving environment, and both are designed to be cleaned and reused rather than replaced.
Vehicle Applications
This intake is a direct fit for 2018 and newer Jeep Wrangler JL models and 2020 and newer Jeep Gladiator JT models equipped with the 3.6L Pentastar engine, covering chassis codes JL and JT. Across the Wrangler JL lineup this includes Sport and Sport S trims from 2018 through 2026, Rubicon from 2018 through 2026, Willys from 2021 through 2026, Sahara from 2023 through 2026, and special editions such as the 80th Anniversary, Freedom, Islander, Moab, High Altitude, and High Tide models within their respective production years. On the Gladiator JT side, coverage spans Sport, Sport S, and Rubicon from 2020 through 2026, Mojave from 2020 through 2026, Willys and Texas Trail from 2021 through 2026, plus special editions like the Launch Edition, Altitude, High Altitude, NightHawk, Jeep Beach, and Freedom within the years each was produced.
Features
- Direct-fit air intake system for 2018+ Jeep Wrangler JL 3.6L and 2020+ Jeep Gladiator JT 3.6L
- Dyno-proven gains of up to 10.8 hp and 11.4 lb-ft of torque
- Increases airflow by up to 36-percent versus the stock intake
- Precision-engineered, rotational-molded intake tube and airbox design
- Dyno-tested integrated resonator keeps power in the usable RPM range
- Available with an oiled or dry washable air filter for maximum performance in any environment
- Air filter can be cleaned and reused rather than replaced
- Retains the stock lower airbox and mounting points for easier installation
- Installs in about 1 hour
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Brand: Mishimoto
- Part Number: MMAI-JLP-18S
- Product Type: Air Intake System
- Filter Material: Multi-layered cotton
- Filter Color: Red
- Hose Material: Polyethylene
- Hose Color: Black
- Grade Type: Performance
- Engine Code: 3.6L Pentastar
- Chassis Codes: JL, JT
- Air Filter Part Number: MMAF-38672S
- CARB EO Number: D-759-9 (currently covers model years 2018-2020)
- Includes: (1) Precision Rotational-Molded Intake Tube, (1) Precision Rotational-Molded Upper Airbox, (1) High-Flow Air Filter (Model #38672S), (1) Silicone Coupler, (2) Worm Gear Clamps, Mishimoto Lifetime Warranty
Frequently Asked Questions
What vehicles fit the Mishimoto MMAI-JLP-18S air intake?
It is a direct fit for 2018+ Jeep Wrangler JL 3.6L and 2020+ Jeep Gladiator JT 3.6L models, chassis codes JL and JT, with the 3.6L Pentastar engine.
How much performance gain does this intake provide?
As tested with the oiled filter, the intake delivered dyno-proven gains of 10.8 hp and 11.4 lb-ft of torque and up to 36-percent more airflow than the stock intake.
What filter options are available?
The intake is available with either an oiled or a dry washable air filter, and both can be cleaned and reused.
How long does installation take?
Installation takes about 1 hour, and the kit retains the stock lower airbox and mounting points.
Is this intake CARB legal?
CARB EO Number D-759-9 currently covers model years 2018-2020.
How should I maintain the oiled filter?
Mishimoto recommends cleaning and re-oiling the oiled air filter every 10,000–15,000 miles during normal driving, and inspecting it more often in dusty or off-road conditions; filter re-oiling is not included in the Lifetime Warranty.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
