Vibrant Performance 1125 Vibrant Performance StreetPower Performance Vibrant StreetPower Oval Muff 5in x 9in x 15in long body 2.75in in I.D. x 2.75in out Center Center Vibrant Performance 10534 Vibrant Performance StreetPower Performance Vibrant StreetPower Flat Black Oval Muffler with Single 3" Tip 2.25 Mufflers & Resonators. Vibrant Performance has one of the most complete offerings of mufflers & resonators for all segments of the industry. Our "true straight through" internals feature a stainless steel perforated tube that is wrapped in our premium quality, multi layer sound suppression materials that will produce a low, deep tone while allowing for unrestricted flow and maximum horsepower. Vibrant Performance mufflers & resonators are the perfect fit and suitable for all naturally aspirated and forced induction applications.