Apologies for digging up this ancient thread. I just started to have this noise after my most recent service, I asked them to check my stock air filter to see if it needed replacing; they advised me it did not.
Since then, from around 3.5k rpm onwards the car has a subtle CAI sound. Not going to lie, I quite like it but my question is, is it detrimental to the car in any way? I opened up the airbox and noticed the seal was a little out of shape but still covering the opening.
If it poses no risk to the car in the long term I wouldn't mind leaving it as there is no drone whilst cruising, only increased noise upon acceleration.
It's not exactly 'critical' but have you notice any loss of economy/power for instance?
I haven't noticed any loss in power\fluel consumption. Just did a 300 km trip averaged about 7/L on the freeway which is a little better than I normally get.
My only concern is damage to the engine; with the seal not fitting as well as before if there a chance that there could be contaminants let into the engine?
As long as the filter seals with the upper half of the airbox, it is fine. If there is a gap, consider trying to repair the seal or squeezing it to at least seal with the top half.
As long as the filter seals with the upper half of the airbox, it is fine. If there is a gap, consider trying to repair the seal or squeezing it to at least seal with the top half.
Originally Posted by DreadAngel
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