Frank C 0 Report post Posted June 10, 2018 I have a 2014 340SY (now the 355SY) that I bought new. Can I install any kind of sound proofing material on the underside of the engine compartment hatch ? There was none provided from the factory but I notice on other boats and even earlier models of some Monterey Cruisers that they had some. If it can be done are there any recommendations of material and thickness. Thanks in advance, FrankC Share this post Link to post Share on other sites
Rip5 0 Report post Posted June 11, 2018 One of dozens.... https://www.soundproofcow.com/soundproof-a-space-restaurant-office/soundproof-a-car-compressor-boat-pump-or-other-equipment/boat-soundproofing-2/?gclid=EAIaIQobChMIz6_Lw47M2wIVxFmGCh2GsAuTEAAYASAAEgLdKPD_BwE Share this post Link to post Share on other sites
