Muffler - Performance - Universal Holley Performance Products

Aerodynamic Lens Directs Sound Pressure Waves Into Acceleration Chamber & Out Of Muffler, Sound Absorption Chamber Eliminates High Frequeny Sound Waves For Deep Throaty Powerful Sound, Resonance Chamber & Tuning Tube Cancels Unwanted Frequencies 16 ga Aluminized Steel Case / Stainless Steel Perforated Plate Resonance Chamber & Tuning Tube Cancels Unwanted Frequencies & Amplitudes, Stepped Acceleration Chamber Increases Exhaust Gas Velocity & Maximum Flow, (3) Internal Bulk Heads For Superior Case Durability & Stability