STREETPOWER Oval Muffler 2.50in Inlet/Outlet

The STREETPOWER Oval Muffler 2.50in Inlet/Outlet from Vibrant Performance is purpose-built for street enthusiasts who demand both aggressive sound character and compact packaging without sacrificing exhaust flow. This oval-chambered design appeals to builders seeking a balance between performance and everyday drivability—ideal for turbocharged engines, naturally aspirated builds, and street-strip applications where space constraints make traditional round mufflers impractical. The 2.50-inch inlet and outlet sizing integrates seamlessly into modern exhaust systems while delivering the tone and backpressure profile that separates a tuned vehicle from stock.

Vibrant Performance engineered this muffler with a dual-chambered oval core that optimizes gas velocity and resonance frequency across the RPM band, reducing high-frequency drone while amplifying midrange rumble. The internal baffle configuration absorbs sound energy at problem frequencies without creating excessive restriction—critical for maintaining scavenging efficiency on naturally aspirated engines and preserving boost response on forced induction platforms. Compact dimensions (9.25 x 6.14 x 25.2 inches) and a reasonable 13.49-pound weight mean fitment challenges are minimal, even on tight chassis where underbody clearance is limited.

Builders running 2.50-inch exhaust systems—common on four-cylinder turbos, V6 platforms, and smaller displacement V8s—will find this muffler a direct bolt-on upgrade that requires no transitional piping. The threaded inlet and outlet design simplifies installation with band clamps or full weld-on mounting, giving fabricators flexibility for custom chassis work. Whether you're finalizing a weekend track car, completing a street engine swap, or chasing that perfect exhaust note in a modest horsepower build, the STREETPOWER Oval Muffler delivers proven Vibrant Performance engineering at a competitive price point.