The only way typically to see any type of intake results is to also have a sufficient free flow exhaust. They work hand and hand, the new free flowing exhaust sort of creates a vaacum on the free flowing intake, causing a nice free flowing system. I still dont see the gr8 of improvments with mine, but it sounds amazing, and thats all I care about really. When I lay on the pedal, the intake sounds like a turbo charger, so it be up to you, but if you dont plan to open up the exhaust, then you only be getting half way there with the results you are looking for, but it gets down to preference, it wouldnt hurt to have the K and N, but u also dont need it either
__________________ 95 F350 w460 Big Block:E4OD transmission,K&N Intake,Performance Camshaft, Ceramic Coated Doug Thorley Tri-Y headers, 2 1/2" true dual exhaust w/ Cherry Bomb Extreme's & gutted cats,22" x 4" SS tips. Limo tint,black paintjob, rollpan, smoked lenses and LED's all around, HID's, American racing rims with Pirelli Scorpion ATR tires. 0-60 6 seconds.
K&N hasn't stacked up so well in independant testing, they allow a lot of dirt to get through, kinda defeats the purpose of an air filter. I have found AEM to be a better choice, they don't require oil to get on your maf and they filter verywell with great flow. I run an AEM dryflow filter on my K&N intake on my ranger.
2009 FORD RANGER fx4 off/road, 5-speed manual, torson diff and rancho's!
I think that K&N is terribly over rated. ive also read that independent tests show they do not perform well. you wont be able to notice much of a difference in the power, you may notice a slight difference at the gas pump though. i'd go with wendell and run the aem dry flow, i would of uprgaded to that on my truck, but unfortunately i hit black ice towing a trailer, but thats another story.
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