Nightster High Performance Harley Davidson OEM Fit Slip On Muffler | Kruesi x Stealth Pipes, photo 1 of 5

Nightster High Performance Harley Davidson OEM Fit Slip On Muffler | Kruesi x Stealth Pipes, photo 2 of 5

Close up of slip-on muffler exhaust system for a Harley Davidson Nightster, made of stainless steel, installed on a motorcycle, photo 3 of 5

Slip-on muffler exhaust system for a Harley Davidson Nightster, made of stainless steel, installed on a motorcycle, photo 4 of 5

Slip-on muffler exhaust system for a Harley Davidson Nightster, made of stainless steel, showing the product from a side angle against a neutral background., photo 5 of 5

Nightster High Performance Harley Davidson OEM Fit Slip On Muffler | Kruesi x Stealth Pipes

Name: Nightster High Performance Harley Davidson OEM Fit Slip On Muffler | Kruesi x Stealth Pipes
Brand: Stealth Pipes
SKU: MUFFLER-RAW-NSTRSO
Price: 582.0 AUD
Availability: InStock
Rating: 5.0 (8 reviews)

$582.00

Fits Nightster.

Sound profile ExtremeLoud on purpose.

FinishRaw Stainless

Raw Stainless

Polished+$180

Cerakote Black+$180

TIG welded by hand in the USA

Fit and specs

At a glance

Fits: Nightster
Sound: Extreme

Full systems are built to order by hand in Vero Beach, Florida, and ship in about 2 to 4 weeks. The build time shows under the price on a full system and again in your cart. On a full system, Polished adds about 3 weeks and Cerakote about 1 week. Slip-on mufflers and parts ship on their own schedule. US orders of $250 or more ship free, counted after discounts. International shipping is calculated at checkout.

Orders can be cancelled before they ship, with a 10% restocking fee since production starts the day you order.

Every Stealth muffler is a 2.25 inch slip-on in .065 wall 304 stainless and fits every Stealth header.

Length in inches, one scale

Reverse Cone Aggressive

12 inches
Pipe Bomb Aggressive

14 inches
Cone-Style Turnout Extreme

17 inches
Mid-Length Pipe Bomb Balanced

22 inches
Full Length Pipe Bomb Balanced

34 inches

90 days from purchase with proof of purchase and installation by a certified Harley Davidson mechanic. Header cracks are covered in the warranty period, and outside it we still repair them free. Finishes are not covered because heat and tuning vary bike to bike. Brackets and mufflers are handled separately.

Full warranty terms

Tuner: recommended with every full system. A high-flow air cleaner plus a proper tune is where the horsepower shows up and what keeps the motor from running lean.

Legal: sold for closed-course use. Know your local sound laws. Under the Magnuson-Moss Act a dealer cannot void your warranty for an aftermarket exhaust unless they show it caused the failure.

American made performance for your Nightster.

The Kruesi x Stealth Slip On Muffler is built to give your Harley Davidson Nightster the sound, style, and horsepower it deserves. Hand fabricated in the USA from .065 304 stainless steel and TIG welded by riders who know performance, this muffler drops pounds of weight while unlocking real dyno proven gains.

Features:

Fits all Harley Davidson Nightster model variations with seamless OEM heat shield integration.
Designed and dyno tuned for significant horsepower and torque increases.
Built from .065 304 stainless steel, available in Raw Stainless or Polished, with optional Cerakote finish.
Lightweight design shaves pounds compared to stock mufflers.
Kruesi x Stealth collaboration laser etched logo for an authentic touch.
Raw Stainless ships within 2 weeks. Polished and Cerakote ship within 4 weeks.
Includes all required mounting hardware for straightforward install.

The result? A deeper, aggressive tone, American made durability, and the kind of power that makes every mile more fun.

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Rider reviews

What riders say

Every review is tied to a Stealth order

5.0/5

15 ratings, 8 written reviews

Rating breakdown

DaleVerified orderAugust 2, 2026

It arrived before i thought i missunderstood how long it would take to ship when i ordered it i thought it was 2 weeks build and since i got the cerakote black it would be 3 weeks on top of that but it had arrived in 3 weeks. I had it installed within an hour and a half and it sounds and looks amazing
Muffler Nightster HP ExtremeFinish Cerakote Black
DarrylVerified orderJuly 2, 2026

Love it
Muffler Nightster HP ExtremeFinish Raw Stainless
WhitneyVerified orderJune 8, 2026

My husband loves this slip on for his bike and it sounds amazing
Muffler Nightster HP ExtremeFinish Raw Stainless
KassidyVerified orderJune 4, 2026

Ryan Kruesi designed this perfectly. Easy to install, simple design, and LOUD. Perfect manufacturing fron Stealth Pipes, and thoughtful packaging. 5 stars.
Muffler Nightster HP ExtremeFinish Raw Stainless
VincentVerified orderJune 3, 2026

Love this, great quality and sound. Easy install!!!!
Muffler Nightster HP ExtremeFinish Cerakote Black
PhilipVerified orderMay 28, 2026

Nice, proud, and aggressive! So easy to install.
Muffler Nightster HP ExtremeFinish Cerakote Black
BrianVerified orderApril 22, 2026

It was exactly as described, even better! Shipping was fast and the instructions were clear and easy. Great satisfaction.
Muffler Nightster HP ExtremeFinish Cerakote Black
LuisVerified orderNovember 22, 2025

Awesome product. Gave my bike the loud, deep grunt I wanted.
Muffler Nightster HP ExtremeFinish Cerakote Black