Originally Posted by 4x4x4trd
Waiting on a 08 with the 4.0 V6.
Have a oem K&N in my '99 3.4 V6 now.
On the '99 I didn't really notice that much more power over stock along with some increase in sound. I opened up the front of the stock air box by drilling 1/2" holes between the little molded squares. I feel if nothing else I saved on the cost of paper filters over the last 9 years with modest power increase. My Question is two fold. #1 Does the new oil free oem filters by AFE filter enough and is any power gained comparable to the K&N? I never had a problem with the oil messing with the sensor on the '99. #2 Does the full change out to a CAI add that much over the drop in's. Thanks
The dry type AFE is rated to filter as well as or better than the K&N with no risk of damage to your MAF sensor.
I "feel" that there was more power gained with the AFE filter in my 4.0L 07 than with a K&N in my 2.7L 04. However, I know that is not an apples to apples comparison, so I don't have a completely sound oppinion here, just sharing my personal observations.
As afr as drop-in vs CAI. To my eye, the stock air box assmebly does not look to be that restrictive, so realistically I don't see how there could be that much gained from an in the engine bay NQRTCAI "not quite really that cold air intake" Again, just my opinion, and that opinion does not extend to the URD True Cold Air Intake, as I can easilly see how that one is able to make more power.
Just my $0.02 Your mileage may vary.