Been running this in conjunction with my other mods for a couple months. Butt dyno did suggest it liberate hp on the high end. The only drawback I have is that ever since I had this, my car exhibit some hesitation issue wen I go WOT at times. I stomp on the gas, the rev goes up, everything pause for awhile as if it's out of breath, before resuming the rev climb . Will need to revert back stock air box to determine if the problem is with the dci
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