How much louder...
My opinion:
FIPK is much louder than stock airbox
FIPK is a little louder than stock airbox with top removed.
But as the stock airbox with top removed, the FIPK is quiet when driving normally, and becomes loud on full throttle. The noise difference when vtec goes on is approximately the same, you can clearly hear the vtec is on.
FIPK is much louder than stock airbox
FIPK is a little louder than stock airbox with top removed.
But as the stock airbox with top removed, the FIPK is quiet when driving normally, and becomes loud on full throttle. The noise difference when vtec goes on is approximately the same, you can clearly hear the vtec is on.
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