S&S Cycle Stealth Air Cleaner Kit — Teardrop, Gloss Black — 2017–2024 M8 Touring

The S&S Stealth for the Milwaukee-Eight: a high-strength polymer backplate with a built-in stinger cone that smooths air into the throttle body, and a high-flow element with far more filter area than the stock setup. Includes the gloss black teardrop cover — the classic S&S profile over the Stealth backplate and high-flow element.

FITMENT

Fits 2017–2024 Harley-Davidson Milwaukee-Eight (M8) Touring models (S&S fitment statement). Includes the gloss black teardrop cover. Does not fit Gen 2 center-cooled models.

Not sure it fits your bike? Email info@norcalbaggersupply.com — email is the fastest way to reach us — and we'll confirm before you order. You can also call 916-626-9030 (Mon–Fri, 9 AM–5 PM PT).

CALIFORNIA / CARB

California / CARB: S&S Cycle publishes CARB Executive Order D-355-50 for this part — it is exempt from emissions tampering regulations under that EO and is legal for sale and use in California on the models the Executive Order covers, as well as in all other states.

SPECIFICATIONS

• Manufacturer: S&S Cycle — part number 170-0525B
• S&S Stealth air cleaner kit for Milwaukee-Eight Touring models (S&S part #170-0525B)
• Built-in stinger cone directs air smoothly into the throttle body bore and reduces turbulence (S&S)
• High-flow air filter element with increased filter area over stock (S&S)
• High-strength synthetic polymer backplate designed to reduce heat transfer to intake air (S&S)
• Made in the USA
• Includes the gloss black teardrop cover — the classic S&S profile over the Stealth backplate and high-flow element.
• CARB Executive Order D-355-50 (S&S Cycle) — see the California note on this page

INSTALLATION

Air cleaner installation is a bolt-on job with basic hand tools: the stock air cleaner comes off and the S&S backplate, filter, and cover bolt on in its place. Follow the S&S instruction sheet included in the box for torque specs and breather routing. S&S publishes an official Stealth install video — it is embedded below.

QUESTIONS RIDERS ASK

Does this fit the Gen 2 (2023.5-up CVO / 2024-up) center-cooled M8?
No — this kit is for the first-generation M8 Touring models in the years listed. Gen 2 center-cooled models (2023.5-up CVO, 2024-up Street Glide/Road Glide) use the Gen 2 Stealth kits.

Can you ship this to California?
Yes. S&S publishes CARB Executive Order D-355-50 for this part, so it is legal for sale and use in California on the models the EO covers — see the California note on this page.