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I read a whole bunch of stuff this week on the paper vs. K&N thing. did a little experiment. drove to work yesterday with the K&N, payed close attention to the performance. put a paper in there today while the K&N dries from cleaning last night. I have driven on the K&N for 30k miles...theres a difference. no doubt about it. especially with the throttle response..and when i merged onto the highway and floored it, i could defintley feel less power today. weather was identical to yesterday. I also took a white cloth, got up in there into the intake, wiped it all out, and didnt find a speck, not even a speck of dust or oil..i couldnt believe it...maybe the dust is just passing into the engine. but i expected to see SOMETHING on the cloth.....nothing.
but the engine may just be inhaling the dust..that always concerns me.....but there a difference on this vehicle..by a couple of HP anyway...throttle response is the biggest difference though..we'll see in the long run if its slowly killing the engine..im at 109,000 now, and plan to keep it at least to 250k God willing