I know I have the force in my lil OZ how many other people out there have systems in their Lancers? If you have serious bass in the trunk has anyone found out how to stop the rear bumper from rattling? I know I can't be the only one?

 

take it off and dynamat it.

 

First off...are you sure it's your bumper and not your license plate? License plate rattle is a pretty common problem. Don't get me wrong, I don't even know how much bass you're running, but it seems odd that the bumper would make a sound before the license plate...and the bumper's pretty much all fiberglass and plastic, isn't it?

 

either way, take it off and dynamat it.

 

focal must be a dynamat salesman. Hobie has a point in that fiberglass and plastic doesn't resonate well so it may very well be the license plate and/or frame.

 

nah, not a salesman. but it basically solved a lot of problems for my M. only bad side is it weighs a lot cuz it's basically lead. Anyways, if it's your frame/plate thats rattling just make something to put between the frame/plate and the boot lid. shouldn't be that hard to solve.

 

No kidding that stuff is heavy...Pop's Accord has it in the doors...eek. Not to mention expensive. I hear they use it to deaden the sound in the space shuttle. Hehehe...but in space no one can hear you scream...Ok...getting off topic. BACK ON TOPIC!

 

I'm running 4 10W3s 300 watts RMS a piece. I've already got 45lbs of mat in my trunk so I'm not weighting the car down anymore. It is definitely coming from the bumper though I've already got foam in behind my license plate. I think its just getting into the body so F*** it. Not like I can hear it over all that bass anyway.

 

Good enough. Damn...you got a lot of weight in there...

 

Not sure on the resonation thing Pjal but it sure as hell does shake when I crank my music in fact my whole car shakes I'm most definitely making some serious SPL sitting in my car will blur your vision its pretty awesome.

 

I could probably use my car for massage therapy it shakes so much.

 

so now you went from an already terrible 18 second 1/4 mile to a 40 second 1/4 mile? Im happy with my two 12" infinitys lol.

 

I think I lost maybe 2 secs with the stuff in the back. It would come out if I was planning on racing though. Plus I weigh in at a cool 150 so its not enough extra weigh to do anything.

 

haha i feel u loneeemeeeee .....i got 2 12" Alpine Type-R DVCs in my rear with a Power Acoustik Sapphire 1600watt amp.....looks bad *** tho....heres a pic ....im thinkin of sellin it though because how much its weighing me down.....any suggestions?? IF i sell....i'll sell the subs and the amp for about $500 ...ne way here ya go...

 

I used the spray type dynamat and it saved me alot of weight. It works good too. My bumper was rattling too and I know it wasn't the license plate cause I took it off and it was still rattling like crazy back there. I'm running 2 15" massive audio dmx's off of an american bass 2000 watt digital amp. I swear there's so much bass the lancers windshield flexes about a quarter of an inch. Anyways back to the subject, I dynamatted my bumper and license plate and it worked for me ( the spray stuff of course).