Re: K&N Series 63 intake impressions
A while back- in my Corvette days, I always switched to K&N and an aftermarket exhaust system because I thought they would give me the then advertised combined HP and torque increases of anywhere from 14-30 hp/ft lbs. Never dynoed them, but they did sound great. I realize this is a Jeep forum, so here is what I learned from an experienced and skilled tuner: instead of buying the intakes and exhausts, spend the money on your girl friend or wife (or both?). Unless you change the camshaft, the ECM is going to adjust back to factory parameters. Spending the money on her will get you a lot more performance - but- and a big but- if it(the exhaust note and intake sound) pleases you, then go for it. Dyno/schmymo- if you feel a difference, then enjoy. I had a similar experience with my 97 Grand Cherokee V8- put a then popular turbo windmill type device in the intake, and I swore the vehicle got up and ran better- just before the FCC closed the product down for false advertising. Just my opinion- I am sure others will differ. As a final note- K&N has changed their advertising to a "environmental save the planet approach by using only their filter for one million miles instead of disposable paper filters"- no performance gains offered. Nuff said- hope I added something and did not hurt anyone. Thanks for putting up with me.