NRA4ever Posted April 8, 2010 Report Share Posted April 8, 2010 I need about 2 gallons of Spectrum to finish my truck. I like the spray best.I put 3 rolls of Dynamat in each door. I had 6 rolls left from a previous install so why not.I undercoated the floorboard with Spectrum. SS products beats Dynamat hands down. Half the product does a better job.My Ranger sounds much better now. Quote Link to comment Share on other sites More sharing options...
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