Mine never made any noise. My friend installed them and for some reason his made noise...but it went away after a week or so...Not sure what it was
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HKS HI-POWER EXHAUST|Stillen Gen 3 Intake|Berk HFC|UpRev tune|Swift SPEC-R Springs|H&R Spacers|EVO-R Lip|EVO-R High Wing|SPC Front/Rear Camber Arms|Hardwired Escort 9500ix
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