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This is the (very effective) "poor man's dynamat" Used it on the inside of my doors and it really knocked down the noise.http://www.lowes.com/pd/Peel-Seal-Instant-Waterproof-Repairs-6-in-x-25-ft-Aluminum-Roll-Flashing/1018733
Peel and Seal is an asphalt-based product and as such is really a poor choice for interior sound deadening! Is it cheap? Yes it is! Will it stink-up your interior? Yes it will! Will it dry-out and become brittle, lose its effectiveness and lose its adhesion with time and heat? Yes it will!B-quiet is a good Butyl rubber based sound deadener that is comparable to Dynamat at a lower cost. Do some reading about asphalt-based sound deadener and make your own choice, but it really is not a good choice for the interior of your ride.