Sound control for the cars that were never given it.

The Bomiz Universal Valved Muffler Kit was built for enthusiasts who want control without compromise. Some cars are too loud on cold starts. Some drone too much on the highway. Some just need the ability to change character at the touch of a button. This kit gives you both sides — quiet and refined when closed, aggressive and alive when open.

Unlike a basic exhaust cut-out, the Bomiz Valved Muffler is designed to be part of the exhaust system, not a shortcut around it. Our chambered muffler design helps quiet and refine the tone when the valve is closed, while the open valve path brings back the volume, character, and emotion when you want it. It is a cleaner, more reliable, more complete way to add valved sound control to a custom exhaust setup.

Why Bomiz?

This muffler was developed for people who care about more than just being loud. We wanted a universal valved solution that could make a car easier to live with without killing the reason you built the exhaust in the first place. Quiet enough for cold starts, neighbors, highway cruising, or passengers — but still capable of opening up and giving the car the sound it deserves.

Built from 304 stainless steel and using an electronically controlled valve system, the Bomiz Universal Valved Muffler is designed for long-term durability, fast response, and real-world use. It uses the same style of electronic valve technology found in modern performance cars from brands like BMW, Porsche, and Mercedes — giving you dependable sound control without relying on outdated vacuum-actuated designs.

Bomiz vs. Exhaust Cut-Outs

Traditional exhaust cut-outs can be harsh, unreliable, and prone to rust, leaks, or premature failure. They often feel like an on/off bypass rather than a refined sound solution.

The Bomiz Universal Valved Muffler gives you a more complete approach. When closed, the exhaust is routed through the muffler to reduce volume and smooth the tone. When open, the valve allows a more aggressive exhaust path for added sound and character. It gives you flexibility without making the system feel cheap, unfinished, or compromised.

Features

• Universal valved muffler design
• Built from 304 stainless steel
• Electronic valve control
• Quiet when closed, aggressive when open
• Chambered muffler design for a refined tone
• Internal resonance chamber to help reduce unwanted frequencies
• Cleaner alternative to traditional exhaust cut-outs
• Designed for custom exhaust builds and fabrication projects
• Backed by Bomiz lifetime warranty

Dimensions

• 18.5 inches long
• 9 inches wide

Includes

• Universal valved muffler
• Electronic valve actuator
• 2x remote controls
• Receiver / control module
• Necessary wiring and hardware