Quote:
Originally Posted by kcsa75
How does turning the pipe down at the end make it louder that straight out?
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Turning down points the exhaust at the ground. The sound bounces off the pavement and back up to the truck. Reverb effect.
A tail pipe out the back directs the sound away from the vehicle and its occupents making it not as loud.
The longer the pipe the quieter the exhaust will be.