Quote:
Originally Posted by Sleeper-6
I have read in the past about people complaining on street driven cars about road noise tbeing transmited through the roll bar into the car. Has anyone thought about using some expanding foam and an extension tube and filling the bar with foam after it is assembled? I think it would kill off resonent noise, deaden the bar, and be very light weight.
Just a random thought I had this morning. 
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Went in the trunk where the bar came through the trunk floor--drilled 1/4 holes on each bar (around toward the back side) --filled it with expanding foam---made a HUGE difference in the noise. I wonder if I had went inside and drilled a few holes to allow the air to escape (not build pressure) would it have taken more foam. Definitely worth the trouble.