FP Performance Street Series Chambered Muffler – Mustang Cobra IRS (PRE-ORDER NOW)

FP Performance Street Series chambered mufflers are built for enthusiasts who want a deep, refined muscle car tone, high-flow performance, and premium stainless steel construction.

Our new offset/offset same-side Street Series muffler configuration was developed specifically for Ford Mustang Cobra applications equipped with IRS, or independent rear suspension. Unlike traditional offset/offset mufflers where the inlet and outlet are positioned on opposite sides of the muffler case, this same-side configuration places both the inlet and outlet on the same side of the muffler body. This makes it ideal for IRS-style exhaust routing found on Cobra applications.

Available in both 2.5" and 3" inlet/outlet sizes, this configuration gives Mustang Cobra owners a clean, purpose-built muffler option for IRS-equipped exhaust systems without the need for unnecessary custom fabrication.

Like all FP Performance products, our Street Series mufflers are manufactured from high-quality, corrosion-resistant 304 stainless steel for long-lasting durability and a premium polished finish. Inside the muffler, we utilize our proven internal flow chamber design, which provides multiple exhaust flow paths to reduce restriction and support improved horsepower and torque.

Those exhaust paths also encounter built-in Helmholtz chambers that help reduce drone while producing the deep, aggressive, and more refined tone the Street Series is known for. Whether you are replacing mufflers on an IRS Cobra system or building a custom exhaust setup, this offset/offset same-side configuration provides the fitment, sound, and quality your Mustang deserves.

Specifications:

Muffler Style: Chambered

Muffler Series: Street Series

Muffler Configuration: Offset / Offset Same Side

Available Sizes: 2.5" Inlet/Outlet or 3" Inlet/Outlet

Application: Ford Mustang Cobra with IRS / Independent Rear Suspension

Flow Type: Directional

Muffler Body Finish: Polished

Dimensions: 14x10x4.5

Overall Length: 19.5"

Construction: 16-gauge body, 12-gauge internal chamber, 304 stainless steel

Muffler Body Shape: Oval

Muffler Sound: Deep / Aggressive / Refined