Frequently Asked Questions

Mufflers play a crucial role in controlling the sound emitted by your vehicle’s exhaust system. The exact sound produced by a muffler can vary significantly based on several factors, such as pipe size, muffler design, and overall exhaust configuration. As a result, the same muffler model may produce different tones on different vehicles.

Mufflers come in a wide range of styles, sizes, and configurations, each serving a distinct purpose. Below is an overview of common types of mufflers and their characteristics:

• Factory O.E.M. Style Mufflers: Typically quiet, featuring a 2- or 3-baffle design. Used in standard vehicle configurations to maintain a subdued exhaust tone.
• Flow-Through Mufflers: Use a straight-through design, similar to a glass-pack or resonator. Provide performance similar to a glass-pack but are shaped like a traditional muffler for easier installation.
• Aluminized vs. Stainless Mufflers: Aluminized mufflers are more affordable but have a shorter lifespan, while stainless steel mufflers are more durable, though pricier. Verify the material composition before purchase.
• Chambered Mufflers: Ideal for street machines and muscle cars, these mufflers produce an aggressive exhaust note and enhanced performance. The chamber design affects the sound produced.
• Turbo Mufflers: Maintain a relatively quiet tone under acceleration, producing a mild rumble. They feature less restrictive tubing to improve exhaust flow.
• Glass-Pack Resonator Mufflers: A straight-through design with fiberglass packing, resulting in minimal exhaust flow restriction. These are the loudest mufflers unless opting for a straight pipe.

An exhaust resonator is a cylindrical component, typically hollow, with a layer of fiberglass-like material between the shell and the core. When installed in the exhaust system, the resonator modifies the exhaust note by reducing unwanted drone sounds and making the exhaust tone smoother and quieter. It works in conjunction with the muffler to refine the sound of the exhaust.

In addition to enhancing the exhaust sound, resonators help improve engine performance, promote smoother driving, and reduce fuel consumption. While some vehicles require a resonator, others may not. Various resonator designs are available, offering flexibility based on your vehicle’s needs.

A flex pipe serves as a flexible joint in the exhaust system, designed to prevent damage to the exhaust manifold or the exhaust system itself. Over time, flex pipes may fail due to factors such as aging or weakened motor mounts. When motor mounts are compromised, excessive movement occurs, which accelerates the wear of the flex pipe.

We offer flex pipes with an inner lining, as they are more durable, stronger, and do not produce undesirable whistling sounds, making them a superior choice for performance and reliability.

Yes, provided it’s  California Air Resources Board-approved for your specific vehicle and engine size. It must also have the required markings and E.O. number on the converter body like D-280-73, D-280-77, D-280-79, or D-280-80 on the converter.

No. Removing a working converter violates federal and state law and can result in fines up to $2,500 per incident.

No, unless proven defective and replaced with an approved unit designed for that application.

Sometimes, yes—if approved for that vehicle (like a 1993 Ford F-Series) and installed per manufacturer guidelines.

The emissions system must match the original certified engine and chassis. Contact the EPA or inspection station for proper guidance.

Yes, if the three-way converter is approved and tested for that purpose under EPA aftermarket procedures.