STREETPOWER Muffler 2.5i n Side Inlet x Dual 2.25

The STREETPOWER Muffler 2.5 inch Side Inlet x Dual 2.25 inch Outlets by Vibrant Performance is purpose-built for enthusiasts seeking a balance between aggressive sound character and street-friendly operation. This dual-outlet muffler accommodates 2.5-inch inlet piping—standard for most turbocharged and naturally aspirated performance builds—while splitting exhaust flow into dual 2.25-inch outlets for refined back-pressure management. Whether you're upgrading a tuned daily driver or mid-level performance vehicle, this muffler integrates seamlessly into custom exhaust systems where controlled noise levels and efficient scavenging are equally important.

Vibrant Performance engineered this unit with internal chambering designed to absorb high-frequency drone while preserving mid-range resonance—critical for street use where highway comfort matters as much as throttle-on presence. The dual outlet configuration distributes exhaust gases evenly, reducing turbulence and maintaining consistent scavenging across engine load ranges. At 17.97 pounds and measuring 25.15 inches in length, the compact footprint (10.5 x 6.95 inches) allows flexible mounting on chassis with space constraints, while the 2.5-inch to dual 2.25-inch transition maintains optimal flow velocity without excessive back-pressure that can reduce peak power output.

This muffler suits builders upgrading 4-cylinder and V6 platforms where 2.5-inch piping is standard—popular on Subaru, Mitsubishi, and other tuning platforms. Installation requires standard exhaust hangars and clamps; verify your current inlet diameter and outlet clearance before ordering. Proper hanger isolation reduces vibration transfer to chassis and extends component lifespan. Pair with quality mandrel bends and high-flow catalytic converters to realize full potential, especially on turbocharged applications where scavenging efficiency directly impacts spool response and peak boost pressure.