Performance Exhaust Systems

by on Sep.06, 2009, under Billet Grills, Formula1

Most after market companies will say that you should see gains of between 2-12 BHP from a full sports exhaust system, but I doubt that the upper quote will be realized unless the original system was very bad. Look for ones that have a proven record. There are many different types of aftermarket exhaust systems and different Materials/designs being used to absorb that sound. Most aftermarket systems have a single baffle in their silencer that allows the air to flow in a straight line through the silencer. Many use a resonator. A resonator is a chamber that… well resonates the sound to alter/reduce the pitch. Some aftermarket systems employ them in their tail pipe to tune the noise.

The trick for the aftermarket people is to design the system to both silence the noise to a reasonable amount and to improve the airflow through the system. Tuning the exhaust is difficult as the cars layout may affect the size, route and length of the System.

Many aftermarket sports exhaust systems are made from stainless steel, but beware that some can weigh more than the standard system and therefore make any increases in horse power void. Shop around and ask how much they weigh. Also be aware that there are varying degrees of stainless steel, so again ask and shop around for that stainless exhaust system.


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