Trask Big Papi Air Cleaner for 2018–2026 M8 Softail

• Trask Big Papi High Flow Air Cleaner
• High-capacity air filter
• Internal velocity stack
• Billet aluminum backing plate
• Required installation hardware
• Rain sock for riding in wet conditions
• Trask External Breather Kit (TM-1023-11-B) — Included for Gen 1 M8 models only

High-Flow Air Cleaner Upgrade
Designed to move significantly more air than the factory intake system, helping improve throttle response and support stronger power delivery.

Built for M8 Softail Performance
Engineered for 2018–2026 Harley-Davidson M8 Softail models equipped with Milwaukee-Eight Gen 1 or Gen 2 engines.

High-Capacity Air Filter
The high-capacity filter helps reduce intake restriction, allowing your engine to breathe more efficiently.

Internal Velocity Stack
Works with the air filter to improve airflow direction and intake efficiency for stronger response across the power curve.

Billet Aluminum Backing Plate
Features a precision-machined billet aluminum backing plate for strength, durability, and premium fitment.

Integrated Breather Recirculation System
The billet backing plate includes integrated breather recirculation for a clean, efficient intake setup.

Rain Sock Included
Includes a rain sock to help protect the air cleaner when riding in wet conditions.

Trask External Breather Kit Included for Gen 1 M8 Models
The Trask External Breather Kit, TM-1023-11-B, is included for Gen 1 M8 Softail applications only.

Dyno-Developed Performance
Designed and tested on the dyno for measurable performance gains and improved real-world ride quality.

Direct Stock Replacement
Designed as a direct replacement for the factory air cleaner, making it a clean and efficient upgrade without unnecessary installation hassle.

Timeless Custom Style
Combines classic styling with modern performance, giving your M8 Softail a refined, high-end look.

Made in the U.S.A.
Manufactured in the United States for riders who value quality, craftsmanship, and proven performance.

• 2018–2024 M8 Softail w/ Gen 1 M8
• 2025+ M8 Softail w/ Gen 2 M8

Note: DOES NOT work with 68mm throttle bodies!

What does the Trask Big Papi Air Cleaner do?
The Trask Big Papi Air Cleaner replaces the factory intake with a high-flow setup designed to increase airflow, improve throttle response, and support stronger power delivery.

What models does this air cleaner fit?
This air cleaner fits 2018–2024 M8 Softail models with Gen 1 Milwaukee-Eight engines and 2025+ M8 Softail models with Gen 2 Milwaukee-Eight engines.

Will this fit a 68mm throttle body?
No. This air cleaner is not compatible with 68mm throttle bodies.

Is this a direct replacement for the stock air cleaner?
Yes. The Big Papi is designed as a direct stock replacement air cleaner for compatible M8 Softail models.

Does this air cleaner include a breather kit?
The Trask External Breather Kit, TM-1023-11-B, is included for Gen 1 M8 Softail models only. Gen 2 M8 applications do not include the external breather kit.

What helps this air cleaner increase airflow?
The high-capacity air filter and internal velocity stack work together to reduce restriction and move more air into the engine.

Is this air cleaner dyno tested?
Yes. The Trask Big Papi Air Cleaner is dyno-developed for measurable performance gains.

Does this air cleaner include a rain sock?
Yes. This air cleaner includes a rain sock to help protect the intake when riding in wet conditions.

What is the backing plate made from?
The backing plate is made from billet aluminum and includes integrated breather recirculation.

Is tuning recommended after installation?
Tuning may be recommended when upgrading intake and exhaust components to help optimize throttle response, air/fuel delivery, and overall performance.

Is professional installation recommended?
Professional installation is recommended to ensure proper fitment, sealing, breather routing, and performance.