Quote:
Originally posted by grumpyolddude
Tech's right about the back-pressure. Gotta be able to push the volume (not the sound) and let the engine breathe. A skinny slit would have to stretch across the entire back of the vehicle.
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So, Why not do that? If the slit was two cm's high & 4 feet wide wouldnt that give enough space for the exhaust & the engine to breathe?