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Discussion Starter #1
hey guys I just installed my autotech system . its prettty nice a low note with near zero interior noise. any way before i put the system on when i accelarate there is a strange raspy / gargaling/ dirrea noise that is very menicing. it was there befor the cat back was on and now its still there. any help would be much appricated thanks guys.
 

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probably a heat shield around the exhaust manifold area. i have one rattling rite now when idling that i need to take off.
 

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Chris is right on with this one. The downpipe heat shield on Mark 3's will rust off it's welds and just sit there, rattling away. It really doesn't need the heatshield anyway, so simply cut it off to eliminate the rattling.
 

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Discussion Starter #4
but it dosnt rattle at idle only when accelarating... i dont know if that changes anyhting. thanks for the pointers though
 
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