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Discussion Starter #1
I just got my Slp lm1 installed yesterday and they sound amazing, but one I hit 2000-2400 rpm there is this extremely loud noise. It only started when the exhaust was put on. Could it be a loose clamp or...?
 

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It could be bumping your frame, or vibrating. Check to see if it's not touching anything underneath your car.
 

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Had the same problem. Mine was over the axle rattling on the frame
 
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