Flowmaster Super HP-2 Muffler 409SS

  • Proven laminar-flow HP-2 core delivers a moderate, refined exhaust tone
  • Durable 409S stainless steel case with high-temperature paint finish
  • 2.50 in. inlet with universal fitment for flexible Truck/SUV builds
  • Compact square case with sleek, updated styling for easier packaging
  • Backed by Flowmaster’s Lifetime Limited Warranty

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$196.52

Out of stock
SKU 12518409

Description

Overview

The Flowmaster Super HP-2 Muffler in 409SS brings a proven laminar-flow core into a fresh, modern package. Flowmaster took the acclaimed core from the classic HP-2 muffler and wrapped it in a new compact square case, delivering the same performance benefits and moderate exhaust tone drivers expect from a Flowmaster laminar-flow muffler — now with sleek, updated styling that looks as good as it sounds beneath your truck or SUV.

Built as part of the Super HP-2 Series, this muffler is constructed with a durable 409S stainless steel case and finished in high-temperature paint to stand up to the heat and demands of daily driving and towing. With a 2.50 in. inlet diameter and a universal design, it’s engineered to integrate into a wide range of exhaust setups.

Sound & Performance

The laminar-flow core is the heart of what makes this muffler special. It’s tuned to produce a moderate tone — assertive without being overbearing — making it an ideal choice for enthusiasts who want a noticeable upgrade in exhaust character while keeping cabin comfort in check. The compact square case keeps the footprint tight for easier packaging under trucks and SUVs.

Key Highlights

  • Proven laminar-flow HP-2 core for moderate, refined tone
  • Durable 409S stainless steel case built to resist heat and corrosion
  • High-temperature paint finish for lasting protection
  • 2.50 in. inlet diameter with universal fitment
  • Compact square case with updated, sleek styling
  • Backed by Flowmaster’s Lifetime Limited Warranty

Fitment & Configuration

This Super HP-2 muffler features a universal design intended for Truck/SUV applications, giving fabricators and DIY installers flexibility when building or upgrading an exhaust system. The 2.50 in. inlet makes it a strong match for mid-sized exhaust configurations. Please note that exhaust tips are sold separately, so you can pair the muffler with the tip style that best suits your build.

Why the Super HP-2

If you’re after Flowmaster’s signature laminar-flow performance combined with a moderate tone and a cleaner, more compact case, the Super HP-2 Series delivers. The 409S stainless steel construction offers dependable durability, while the high-temperature paint helps maintain its appearance over the long haul. It’s a well-rounded muffler for truck and SUV owners who want proven engineering, refined sound, and modern styling in one package. As with all products carrying a California Proposition 65 warning, please review the applicable notice before installation.

Backed by Flowmaster’s Lifetime Limited Warranty, the Super HP-2 Muffler in 409SS is built to be a lasting addition to your exhaust setup.

Specification

Brand

MPN

12518409

Prop 65 Warning

Nickel (Metallic)

Universal

No

Finish

High-Temperature Paint

Warning

Sound Level

Sub Category

Emission Code

Inlet Diameter

Muffler Series

Exhaust Tip Quantity