Straight Cut (Double Wall). Muffler Size: 5in x 9in Oval Muffler Body, 15in Long. Overall Length: 24in (including tips). Tips Length: 8in. Muffler Sound: Deep Tone. StreetPower Universal Performance Mufflers offer a perfect balance of subtle styling and all out power. These mufflers are constructed from T304 Stainless Steel for optimum durability and corrosion resistance. Each oval bodied muffler shell is densely packed with premium multi-layer sound suppression material that produces a very distinctive deep exhaust note. Suitable for both Naturally Aspirated and Forced Induction applications.