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Originally Posted by keiphers
Have you lost low end power? I've got the K & N and have definately lost some low end....
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I haven't lost any low-end power according to my "butt-dyno". The graphs that I have from a real dyno unfortunately don't start until around 2500 RPM due to the limitations of the dyno testing. The engineer there did try to do some lower-rpm starts, but when the Tundra would downshift it would lose traction and spin the tires. AEM's dyno does have the ability to do load-testing, where they can get the full range of RPM's, but we weren't using theirs. I did ask if they could send me those charts, and unfortunately they'd have to retest a vehicle to recreate the charts. They seemed willing to do that, but I don't know if/when they'll actually do it.
According to AEM, the K&N isn't really tuned...it's just a free-flowing intake (Take this with a gigantic grain of salt since they ARE competitors), which is what causes the power loss at the low end. AEM also does buy competitor models (which I would assume includes the K&N) and tests them against theirs, with the goal of their product exceeding the competition's. Again, this is from AEM's point of view so take it as you will. 
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Genthar
Rhino Lining, Waag one piece grille guard and wheel to wheel nerf bars, 3M Xpel on headlights, front corner lights, and foglights, Valentine One radar detector, XM Satellite radio, Navigon 7100 GPS, Lightforce 240 Blitz aux lights, Aux. reverse lights.
AEM Brute force intake, courtesy of AEM Power and TundraSolutions.com
Teamwest Coilovers, Camburg Upper A arms, Daystar Steering Rack Bushings, Total Chaos Diff Drop spacer, JBA Headers, Y-Pipe, and EVOL exhaust.
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