mike_01 wrote:Is your car a turbo? if so would say 100% it's your waste gate or actuator, had that same noise only at certain rev's on my gt-4 and found it to be the waste gate had play.
Could alsobe be a loose bolt/nut or washer and or heat shrink/sheild has come loose
ESXTEZZ wrote:Mine does the same mate, and another tezz I saw at a meet had the same manifold and did exactly the same.
mike_01 wrote:I would contact hks tbh or a hks trader would be more likly to confirm something, have you put your other manifold back on to check it is definaly the hks?
donut46 wrote:Its hardly a weld broke where the pipes go from 4 to 2?
moomoo wrote:I've a HKS 4-1 Header/manifold that recently started to make a jingling rattling sound as if a coin had been dropped into it and was just moving around at certain revs.
I took the manifold off to see if something would fall out of it but it didnt, and there wasn't any noise if you shook it.
After putting it back on the car and before connecting it to the cat, I put a bar into the manifold and it hit something and stopped the noise (noise came back after removing bar )
So is there some kind off plate/door inside the manifold thats stuck or broken?
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