S&S CYCLE SKU: T14-663049

S&S Cycle High-Flow Intake Manifold - Harley Milwaukee-Eight

$703.000,00
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About S&S Cycle

S&S Cycle has built American V-twin performance parts in Viola, Wisconsin since 1958 — flywheels, carburetors, cams, cylinder heads and complete crate engines. When a Harley owner talks about a 124, a 128 or a 131 build, they are usually talking about S&S. Few names carry more weight with engine builders in this space.

Uncork your Milwaukee-Eight engine with the S&S Cycle high-flow intake manifold, engineered to deliver unrestricted airflow. This direct replacement for the stock plastic unit is designed for performance gains you can feel on the street or dyno.

Why riders pick this

  • Boosts airflow and engine performance on Milwaukee-Eight models
  • Replaces restrictive factory plastic intake manifold
  • Constructed from durable T6 heat-treated aluminum
  • Precision CNC-machined for a perfect, leak-free fit
  • Includes new rubber seal for complete installation

The S&S Cycle high-flow intake manifold is a significant upgrade for 2017-2021 Harley-Davidson Milwaukee-Eight engines. Cast from T6 heat-treated aluminum and precision CNC-machined, it replaces the restrictive factory plastic manifold. This design ensures maximum, uninterrupted airflow to your cylinders, supporting improved engine efficiency and power output without modifying emissions controls.

Engineered for Unrestricted Performance

  • T6 heat-treated cast aluminum construction for durability and strength
  • Precision CNC machining ensures a perfect fit and optimal airflow
  • Replaces the restrictive stock plastic manifold for enhanced performance
  • Includes a new rubber seal for a complete, secure installation

Simple Upgrade, Noticeable Impact

This intake manifold is designed for straightforward installation, making it an accessible performance upgrade for your Milwaukee-Eight. By reducing intake restriction, it lays the groundwork for improved throttle response and horsepower, especially when paired with a performance exhaust and an updated tune. It's a foundational upgrade for riders looking to maximize their M8's potential.

Specifications

  • Brand: S&S Cycle
  • Manufacturer Part #: 160-0241A
  • Material: T6 heat-treated cast aluminum
  • Weight: 1.4 lb
  • Category: Headers & Manifolds

Common questions

Will this manifold increase horsepower?

Yes, this S&S Cycle manifold is designed to reduce intake restriction and improve airflow, which can lead to horsepower gains over the stock unit.

Is a fuel tune required after installing this manifold?

A fuel tune is recommended to fully optimize the air-fuel ratio and realize the complete performance benefits from the increased airflow.

Is this manifold emissions compliant?

Yes, this S&S Cycle intake manifold is exempt from emissions regulations.

Ordering from Vtwinbikers

  • Brand new, sourced through authorized US distribution — never used, never grey-market.
  • Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
  • Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
BRANDS&S Cycle
TYPEHeaders & Manifolds
SKUT14-663049
WEIGHT1.4 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.84
51 RATINGS
5★ 45
4★ 5
3★ 0
2★ 1
1★ 0
✓ VERIFIED
Nov 9, 2021

10/10 would recommend

Nearing 40k miles on my 2018 Road Glide I was concerned with some of the issues the stock M8 was having. Conveniently this kit fixes everything that I was worried about and has the added bonus of 30HP and 10TQ. The 475 cam really woke up my 107" and you can feel the increase in acceleration power through all the gears but especially over 70MPH.<br />- Wiz IOMC <8> IOFFIO

— Gregory C
✓ VERIFIED
Nov 1, 2022

Overkill, just like I wanted

Great kit with just about everything you need. Plenty of online tutorials to make it quite simple. Took me about 6hrs from start to finish, and I did it all in my front yard

— Atreyu S
✓ VERIFIED
Nov 8, 2021

Great product, A+. Great sound and quality

The kit is amazing, great quality and all parts needed for the job. Easily the best upgrade I?ve done to my bike. It?s exactly what the M8 needs to make it sound good. Would absolutely recommend.

— Cory G
✓ VERIFIED
Oct 29, 2021

The 475 cam really woke up my M8! More power and better sound the hardest thing to do ended up being removing and installing the exhaust. I highly recommend this.

— Glenn W
✓ VERIFIED
Jul 27, 2023

A superb kit. All inclusive except… (and not a real show stopper), read on —

Mostly bought this kit for the oil pump to avoid any problems with potential sumping issues but the old Harley battle cry “as long as we’re in there…” ruled in my case. Saw no downside to the 475 cam and wasn’t disappointed. New cam, cam plate, new lifters and adj pushrods, of course, and no warm fuzzies with the plastic lifter sleeves (not incl in this kit), so those went as well. No dyno to share as I went with a canned tune from FuelMoto on a DynoJet PowerVision and am autotuning. Butt dyno says good gains in hp and tq. Glad I did it. My only mild negative is that it wasn’t blasting me in the face that I needed a HD brand o-ring/gasket for the oil pump that they, for proprietary reasons, could not include. It may have been mentioned somewhere but I don’t recall seeing it. Not a big deal and certainly no reason to go elsewhere for a kit. This most excellent kit, except for said gasket, was otherwise all inclusive and I can’t recommend it too highly. Good job S&S. 2019 FLHXSE 117, oil cooled

— William W
✓ VERIFIED
Mar 14, 2024

Was worth it to me

Traded mpg for the power and chop from this cam. M8 107 dyno'd at 110hp 122tq.<br />2017 stock header, cat delete, x-over capped to 2-1, neighbor hater, k&n 63-1138

— Travis G