Spoiler and Bumper Noise

[ElCid20]

I've just installed 2 10" MTX Blue Thunder Extreams in my MP5. They sound friggin awesome!! I have a problem though, the spoiler and (what I believe) rear bumper are vibrating and in effect making way too much noise.

Does anyone know how to remedy this?? Will dynomat help any on the hatch door?? A friend was telling me about this liquid foam that I can squeeze between the car and spoiler. Does that sound stupid? Anyway, any advice would be helpful.

 

[changedman]

dynomat sheeting stuff works pretty good. dynomat everything. it will help dont spray liquid foam. i did that all in the trunk of my old nissan. s*** was nasty. now imaging doing it on the outside of your beautiful car...
dont

 

[changedman]

and BTW

welcome to the boards!!

 

[1551Racing]

Take some electrical tape wound around a couple times 2-4 end over end about 3" long, and take a small skrew driver to push between back window and spoiler, easy, cheap and works great.

 

[DrummingFrenzy]

Also, make sure that it's not just your license plate.