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Originally Posted by miket
Well, no leak.
The K&N makes a nice improvement in the throttle response and boosts power just a bit. It's boosted just enough to not have to downshift going uphill when you'd normally expect to.
As for installation: the directions I got were for a Pathfinder. The filter fits anyway. Ignore the part about pulling out the tray. When you're placing the cover back on the box, you just gotta wiggle it around a bit so the edges of the cover and are flush with the bottom of the box.
mikeT
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hey mike. i installed a pop charger on my supercharged X, and ever since then, i have had a loud whistling sound that only happens at a particular rpm range, usually 2500-3000rpm. when i increase/decrease throttle at this range, the sound fluctuates on/off, so i'd bet money that its a vacuum leak someplace. did the dealer help you out on where to look for the possible leak that you had? the noise i hear is coming from the driver's side. thanks.
