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K&N 57i EP3

Messages
1,247
Hi
just put a K&N 57i kit on my car last night all is good but when the car is on tickover and low revs it makes like a whiring sound like the fans on any ideas what the problem could be?
Before anyone bothers the give their opinions with unhelpful posts about who K&N are rubbish dont bother because i dont want to hear them lol
 
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