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Transtech

Modified exhaust

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Transtech

Any one on this site have a a late 80's Malibu skier with the 5.7 and what exhaust modifications have you done to get that thump sound out of the motor

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Michigan boarder

What are the details of your current system?

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Woodski

Can you give more description on the sound that bothers you?  One contributor to a thumping sound is water pulsing in the rubber hoses.  A way to reduce that is to eliminate as much rubber hose as possible, you do need flexible connections between the hard attachments.

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