Flowmaster Super HP-2 2.5-Inch Center Inlet/Outlet Muffler - 12518304

Specifications

• Brand: Flowmaster
• Part Number: 12518304
• Series: Super HP-2
• Product Type: Muffler
• Inlet: 2.5 in Center Inlet
• Outlet: 2.5 in Center Outlet
• Body Dimensions: 18 in L x 5 in W x 4 in H
• Body Shape: Oval
• Overall Length: 24 in
• Material: 304 Stainless Steel
• Finish: Natural
• Sound Level: Moderate
• Design / Technology: Laminar Flow Technology
• Fitment: Universal
• Warranty: Lifetime Limited Warranty
• UPC: 700042030217

About the Flowmaster Super HP-2

Flowmaster’s Super HP-2 series is built for drivers who want a compact performance muffler or resonator with a smooth, free-flowing design and the unmistakable character expected from a Flowmaster exhaust. Instead of relying on a conventional packed muffler layout, the Super HP-2 uses Flowmaster’s Laminar Flow Technology to manage exhaust pulses while maintaining an efficient path through the case. Flowmaster describes the series as dyno tuned for maximum performance, making it a strong choice for custom exhaust systems where both flow and sound quality matter. The stainless-steel construction is designed for long service life, and Flowmaster backs the series with a lifetime limited warranty. Sound level depends on the specific case length and configuration: shorter Super HP-2 units are generally listed with a more aggressive exterior tone, while the longer versions move toward a more moderate sound. That makes the line useful for everything from compact resonator duty to a primary muffler in a performance-oriented system. The slim body also gives fabricators useful packaging flexibility when space is limited around driveshafts, suspension components, fuel tanks, or custom routing. For a street car, truck, hot rod, or custom build that needs a durable stainless component with performance-focused flow and a refined Flowmaster sound, the Super HP-2 offers a versatile foundation.