I would highly recommend searching this forum for information about the K&N system. I have a buddy who is using one on his F and loves it. With the K&N, you have to remove the entire stock intake box and pipe to stall. There have been a few mentioned worries about heatsoak occurring during the summer months however many owners who had this issue found a do-it-yourself (DIY) fix that appears to work.
I'm currently running the Takeda intake. I switched over to the Takeda from the Joe Z intake because I wanted something different and the price I picked up the Takeda for was irresistible. You can't go wrong with either the Joe Z or the Takeda in my opinion. The Takeda replaces half of the stock intake box with a cone filter head and covering. I live in Texas where it can get extremely hot and I noticed no heatsoak issues with either the Joe Z or the Takeda. I've honestly enjoyed running the Takeda and have had no issues with it at all thus far. Fitment and quality are high quality while the performance improvement is on point.
The Joe Z is a great intake pipe as well and I would recommend it to anyone. The Joe Z is a tube that simply replaces the stock intake tubing from the airbox to the engine block. I loved running the Joe Z (I still have it and don't mind changing it out every once in a while) and noticed horsepower gains, no heatsoak and impeccable quality, fitment and service (from Joe himself). A majority of people pair the Joe Z with an aftermarket filter that replaces the stock filter in the airbox. There have been numerous individuals reporting positive feedback with this change as well.
It's all a matter of opinion on what you're willing to change in the engine (stock box, etc.), how much you're willing to spend and what you personally are looking to get out of the purchase. I would do a little more searching and feel free to ask anymore questions you may have.
I made the switch from the K&N to the Takeda after Lou did. He has some photos of the install. Its a MUCH cleaner look under the hood vs. the K&N in my opinion. I will say the K&N sounded sickest all the time but there is still more growl with the Takeda vs stock. Good luck.
During my Dyno testing I found the Takeda to run the lowest numbers. All dynoed on same day, with mileage between. On my Takeda the MAF mount was off and the sensor flange needed to be filed. There was also a stray filler rod from welding pushed through the bead start on the MAF flange. I feel like the mix was off as I had one occurance of a backfire in off throttle.
I am running the injen now, mostly because my stock intake with the charcoal removed started throwing out of range CEL due to turbulance and I needed an intake to throw on there. Note I ran the stock intake in the same way for nearly 2 years and it was only after dyno testing the intakes that it started have issues. I tested all three and the Injen was close to stock but stock still generated the most HP and smoothest curve on the dyno. But again, I had modified it, and it had a high flow filter. I have the Takeda for sale if anyone wants it. well below wholesale cost.
Thanks Fig, i have been looking at intakes, but fishing through the forums sometimes gets annoying with all the junk in here.
just recently go the PPE headers, and i'm going to get the PTS Joe z edition exhaust, but was looking at intakes as well.
from what i have read you get so many contradicting accounts from , wow this is awesome, to , no, you lose power after the ecu compensates.
thanks for dyno testing with none has thanked you.
did you buy any chance test the high flow filter and joez pipe? if so how did that go?
My Takeda has been in for 15 months now and it aint goin' nowhere. I never dyno tested (compared) it to stock, but I have dynod my car with PPE headers, hi-flow cats, my custom exhaust (dual with stock mufflers) and the Takeda. We made 382 at the wheels.
IMO there is not a great intake concept out there, but I did like the takeda for its retention of the 2-stage intake. My main gripe was the quality concerns and the finish on things. I also have one other person get the intake and there were not snap tabs welded on the filter shroud.
The Injen couplers are way too tight and hard to install. but overall the finish on the tubing was a lot better.
The MAF tune is the only input to massage on this platform, so its also a moving target of variables to do intake, exhaust, headers and make sure that the stock tuning assumptions still hold in parameters. If you walk out of 30% of LTFT that is when there will be issues, but the ECU has quite a range to adjust with and also great feedback.
My thoughts at the end of my experience were that the small gains from an intake were not worth the stress and argument of which was ultimately better.
If you like a 2-stage intake go Takeda
If you like more tube color options, go JoeZ
If you like the fit and finish of the shielded intake of the Injen, go with that.
Intakes are mostly noise satisfaction anyway, so pick the tone and appearance you like and move on. Just try to get the most info you can and make a decision.
The big evil here is the dyno. Same dyno, different day, different results. Take dynos as relative measurement devices because even the resistance in the bearings can throw off numbers. Its a necessary evil to provide customers with a measure.
I really like to go through the customer experience because above all I am a consumer myself and I like to test the claims of companies that market products. I felt dissappointed with both intakes I felt to be the strongest competitors in the category. I think if you make your decision and its educated and you can live with it, you will. Its much harder to admit you were wrong once its installed and driving is all I am saying, you will probably learn to like any version you get.