2017–2025 Harley M8 Softail Full Exhaust System
2017–2025 Harley M8 Softail Full Exhaust System
2017–2025 Harley M8 Softail motorcycle with Stealth Pipes exhaust system installed – American-made performance muffler
Stealth Pipes exhaust system on Harley M8 Softail 2017–2025 – stainless headers and muffler, side view
Stealth Pipes stainless exhaust system – 2017–2025 Harley Softail fitment, TIG welded
Harley M8 Softail motorcycle with Stealth Pipes exhaust – riding photo, stainless muffler upgrade for 2017–2025 models
A black motorcycle with the focus on the exhaust system, which is silver in color. The motorcycle is parked against a plain wall backdrop.
Stealth Pipes exhaust system installed on Harley M8 Softail – front-side view of muffler and headers (2017–2025)
Stealth Pipes exhaust system installed on Harley M8 Softail – view of side (2017–2025)
Dynojet chart
Stealth Pipes exhaust system installed on Harley M8 Softail – view of side (2017–2025)
Stealth Pipes exhaust system installed  – view of side (2017–2025)
Stealth Pipes exhaust system
Stealth Pipes exhaust system installed  – view of side (2017–2025)
Stealth Pipes exhaust system installed on Harley M8 Softail – rear-side view of muffler and headers (2017–2025)
Stealth Pipes exhaust system
All Stealth Pipes Mufflers with Overall Lengths Reverse Cone Pipe Bomb Turnout Mid Length Full Length
Stealth Pipes exhaust system installed on Harley M8 Softail – rear-side view of muffler and headers (2017–2025)
Stealth Pipes exhaust system installed on Harley M8 Softail – rear-side view of muffler and headers (2017–2025)
Stealth Pipes exhaust system installed on Harley M8 Softail – rear-side view of muffler and headers (2017–2025)
Stealth Pipes exhaust system installed on Harley M8 Softail – rear-side view of muffler and headers (2017–2025)
Stealth Pipes exhaust system installed on Harley M8 Softail – rear-side view of muffler and headers (2017–2025)
Stealth Pipes exhaust system installed on Harley M8 Softail – rear-side view of muffler and headers (2017–2025)
Stealth Pipes exhaust system installed on Harley M8 Softail – rear-side view of muffler and headers (2017–2025)
Stealth Pipes exhaust system installed on Harley M8 Softail – rear-side view of muffler and headers (2017–2025)
Stealth Pipes exhaust system installed on Harley M8 Softail – rear-side view of muffler and headers (2017–2025)
A black motorcycle with the focus on the exhaust system, which is silver in color. The motorcycle is parked against a plain wall backdrop.
Stealth Pipes exhaust system installed on Harley M8 Softail – rear-side view of muffler and headers (2017–2025)
Stealth Pipes exhaust system installed on Harley M8 Softail – rear-side view of muffler and headers (2017–2025)
Stealth Pipes exhaust system installed on Harley M8 Softail – rear-side view of muffler and headers (2017–2025)
Stealth Pipes exhaust system installed on Harley M8 Softail – rear-side view of muffler and headers (2017–2025)
Stealth Pipes exhaust system installed on Harley M8 Softail – rear-side view of muffler and headers (2017–2025)
A black motorcycle with the focus on the exhaust system, which is silver in color. The motorcycle is parked against a plain wall backdrop.
Stealth Pipes exhaust system installed on Harley M8 Softail – rear-side view of muffler and headers (2017–2025)

2017–2025 Harley M8 Softail Full Exhaust System

SFT3-RAW-MLPB

Regular price$1,330.00
/
Shipping calculated at checkout.

  • MADE IN THE US
  • Free shipping
  • Stealth Warranty
  • In stock, ready to ship
  • Backordered, shipping soon

Stealth Pipes mufflers are grouped into three sound profiles to help you choose the tone that fits your riding style. Each profile reflects overall loudness, aggression, and exhaust character, not just volume, but how the bike sounds on the road.

Balanced mufflers deliver a full exhaust note without excessive volume, making them ideal for riders who want strong sound presence without overwhelming noise.

Aggressive mufflers increase volume and bite, producing a raw, performance-driven sound that stands out under throttle while still remaining rideable.

Extreme mufflers are built for riders who want the loudest, most unapologetic sound possible. These options deliver an aggressive exhaust note designed to dominate attention.

All Raw Stainless pipes will ship inside of 4 weeks from purchase date. Likely much sooner, so email or call for more accurate lead times. Polished products add 3-4 weeks to arrival on your doorstep.

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Performance gains you can feel.

The Stealth Pipes 2017–2025 Harley Davidson M8 Softail Exhaust System is built to deliver serious horsepower, torque, and American made sound. Hand TIG welded from mandrel bent .065 304 stainless steel, this system consistently produces dyno proven gains of +25 horsepower on 114 engines when paired with a high flow filter.

Features:

  • Fitment: Direct fit for all 2017–2025 Harley Davidson M8 Softail models, including Low Rider, Low Rider ST, Fat Bob, Heritage, and more.
  • Performance Built: Dyno tuned for horsepower and torque gains; +25 HP gains on 114s with high-flow filter.
  • Premium Materials: mandrel bent .065 304 stainless steel, TIG welded by hand in the USA.
  • Easy Install: Stainless collars, 18mm O2 bung + 12mm reducer included.
  • Lightweight: Drops significant pounds compared to stock exhaust.
  • Custom Options: Available in Raw Stainless or Polished, with 3 muffler styles to choose from.
  • Controls: Works with both forward and mid-control configurations.
  • Low Rider ST Note: Requires baggage support bracket (available separately).

For Softail riders chasing massive gains and a deeper, aggressive tone, the Stealth Pipes M8 system is the ultimate upgrade.

muffler Sound Profiles Explained

Balanced

Balanced mufflers deliver a full exhaust note without excessive volume, making them ideal for riders who want strong sound presence without overwhelming noise.

Aggressive

Aggressive mufflers increase volume and bite, producing a raw, performance driven sound that stands out under throttle while still remaining rideable.

Extreme

Extreme mufflers are built for riders who want the loudest, most unapologetic sound possible. These options deliver an aggressive exhaust note designed to dominate attention.

modular fit mufflers

Every Stealth Pipes muffler is a direct slip on fit with every exhaust system we make. Change up your muffler (and sound) in minutes.

Stealth Pipes exhaust system on Harley FXR – rear angle, stainless muffler upgrade for 1985–1994 models
Harley FXR fitted with Stealth Pipes exhaust system – 1985–1994 stainless steel headers and muffler

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