[Steve C.]

Related ?

"As far as power is concerned, tail pipe length after the mufflers has no measurable effect on the power if a large change in cross section is present up stream (toward the motor) of the tail pipe. An open-type muffler, or a resonator box, provides this cross-sectional change. The tail pipe length exiting most glass pack installations is also of little consequence if a resonator box is used, but is of significant influence if not."

http://www.superchevy.com/how-to/exhaust/0505phr-exh/


It won't be long and he will be making 10-second passes

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