Cummins Exhaust Systems for 5

Choosing the Best Dodge Cummins Exhaust Systems

Whether youve dinged your muffler on your 4WD truck or want to give your muscle car a mean and mighty roar, there may come a time when you have to replace or upgrade your exhaust system. If you plan to tackle the job yourself, eBay is the place to acquaint yourself with the breadth and range of new and used parts for Dodge Cummins exhaust systems.

Designers today rely on principles developed by Hermann Helmholtz, a psychophysicist from the 1800s, who published a "Theory of Tone," which said that the perception of tone combines art and science. According to Helmholtz, the inner ear transmits a spectral representation of sound to the brains auditory cortex via the auditory nerve from the brain stem.

You may hear terms like turbo, bullet, and multiple baffle in reference to silencer design, but the three main categories are reactive, absorptive, or a combination of the two.

• Reactive design - Based on Helmholtz theory of sound transmission, a reactive muffler consists of a resonating cavity, or echo chamber, attached to the tail pipe.
• Absorptive design - An absorptive material, such as fiberglass, placed between the perforated plate and the casing, converts the energy contained in sound waves into the energy of heat, thereby reducing the noise level.
• Combination of reactive and absorptive - A completely reactively designed system will result in a tinny noise, while a fully absorptive design will produce more of a drone. A combination of the two is the best strategy, according to experts.

An inexpensive exhaust system on eBay can indirectly affect a cars performance, and vice versa. Say you upgrade the power output of your engine; youre going to need to upgrade your muffler, too. A restrictive system will reduce noise more effectively than the absorptive counterpart, but will generate as much as 16 pounds of back pressure, which can choke your engine. The MAC Flow Path offset/offset 3-inch stainless steel muffler would be a good choice, combining optimum noise control while delivering maximum airflow.

The Magnaflow Direct-Fit OEM Grade Catalytic Converter is specifically formulated for diesel applications. Its ribbed body minimizes expansion and distortion and holds the ceramic catalyst in alignment. Seam welded for a strong, tight bond, the Magnaflow cat is easy to install and requires no fancy modifications or disfiguring drilling to your vehicle.