Ok I got the Injen today and installed it, looks mint! So I reset the ECM and all that, now mind you the car has only 387 miles on it so far, the MPG indicator has been hovering at 27- 28.5 MPG, after I installed the Injen it’s been around 17-21MPG! Anyone else note this I did clear it and let it recalc and it came back low again. I couldn’t tell if it made a difference in performance since I’ve not got on it yet due to mileage, although it’s not in your face like the Stillen (loud). Did I mention it looks awesome? Got the polished.

 

Having a new car, your mpg will improve a bit once you've broken the car in... I haven't installed my Injen CAI yet, so not sure what effect that has on the mpg. I would assume it also takes a certain amount of miles for the ECU to relearn the new intake.

 

Havin a new intake makes the gas pedal just a lil bit heavier...

 

I hear you on that one!!!!

 

well, first off that computer is not even close to accurate, so don't go by what it says. It is only reading vaccume preassure, and I am sure usually you are pretty casual with your driving. Now that you have the CAI in you are lead footing it.

Also, you cannot reset the ECU on these.... if you did then we would all love to know how, because the New ECU/ECM doesn't have a reset control and doesn't respond to disconnecting the power. The only thing that does it is driving the car for about 200 miles and/or @ 50 restarts.

With that in mind, your car is not performing right with the intake. It has to learn and use the new mapping. Give it about a week or two and you will notice one day your car just wakes up and boom it is much quicker.

Enjoy, you should enjoy this intake.

R

 

Keeping in mind that I've never owned a car w/ a MPG calculator, I would guess you should just worry about your actual MPG...the figure you come up with every time you gas up. I did not notice any difference in MPG at all before/after intake.

Tony

 

Yep. I just hit 400miles on this tank and I still have 1/4 left. However, I drove to Seattle and back, all I-5...BUT, I did punch it here and there, and of course tonight I was heavy footin it all over town...so instead of getting my 480 or so miles on this tank, I'll probably end up at 430...which is fine, for having an injen! I don't look at the cpu calculation...

Oh, and I got to see the "ICY" note pop up on my cpu screen! I didn't know our cars did that. The temp was 37 degrees this morning on the highway, so it's my first encoutner. So cool.

I fill up about 15.5 gallons, so do the math.

 

No lead footing yet, got the car Tuesday, took Wednesday off to cleanse paint and get two coats of Liquid Glass and Rainex on the windows. Had the wheels rebalanced, Friday had the windows tinted, installed the Injen and swapped over to Mobil 1. I might get to drive it today. Thanks for the advise, roger on the 4:20.

 

480 miles?!?!?!??!!

OMG, im getting like 230
im on ly getting about 15 mpg at fillup...

i do city driving only, ocasional punch,

is anyone else seeing these figures?

 

I just got my Injen install too!! MPG calculator is not doing much different. But do you guys hear a high pitch sound when you are flooring it in 1st at around 3000rpm to 4000rpm? sounds like blow off valve goling off, or a screw scratching somewhere. and what does your injen intake sound like when it gets pass 5500rpm? on my 2k2 it sounds like the engine is running really dry, or rough. it's not a deep low roar, but somewhat mid-high, dry roar. is this the same on all of your 2k2 6spd?
oh, i am only getting like 410 or so per fill up, 15-16 gallons. I do high way and local, mainly highway. so 480 is never been seen before in my car, not even close.

 

Hi Proceedbob, I just installed my Injne CAI yestarday, 2k2 6 spd. My final position of the intake is kind of weird. I was wondering if yours is the same. my secondary intake pipe is kind of slanted towards the driver's side, and it doesn't extend too far down under the hood. the end of my whole intake, or the end of the filter is right around just below the fan. there is like 1 foot or so of length until it reaches the black plastic plate thing. is this what you end up with when you are done installing? Anyone else got injen on their 2k2 6spd, feel free to jump in..... tahnks....

 

Hmm....Injen...in my dream

 

I get the same thing, 230 miles exactly!

 

Everything you guys are mentioning is totally normal...except the low gas mileage! But hey, maybe your car is producing more HP than mine! (Perhaps I have the 4cyl model)

 

Sounds about perfect, slant and all.

 

I want an Injen now Where is the BEST place to order one?

 

Adventon or Southwestautoworks

 

It's not a 6 speed but if anyone looking at Injens wants to hear it from inside the cabin, I made a new camera mount (2 different angles) and took a few quick test runs. Windows and sunroof closed. (2K2 Auto)

Run 1 - 2.3 meg

Run 2 - 1.8 meg


Shaydz

 

This also sounds like mine, although mine is 2k1 auto. However, I did get 400 miles on one tank of highway driving with a couple of high speed passes of slower traffic.

 

at least im not the only one
any one else getting crappy milege liek this?

 

Hey Shaydz how high were you cranking the revs?

 

Very nice job on the MPEGs, really lets a perspective buyer hear how the intake is going to sound, and let me say that it sounded very good to me!

 

Since I put the Injen on, it goes to redline. Didn't do that before.

It used to shift at about 6K now it goes on up to around 6500.
The slow shift from 1st to 2nd ****es me off a little (it's always done that). Sounds almost like a slipping clutch in a manual.
Maybe I need a VB mod next? HEHEHE.

I tried to get the tach and speedometer in the shot but during the day and with the resolution, it's hard to see it. I'm going to experiment at night with the offset mount - see if its better.

KrazyD THat's with the car closed up. From outside it will spin a head or two. But if you don't WOT you can accelerate fairly quickly w/o the growl. Good sleeper mod.

I generally try to get 300 miles out of a tank (all city driving). On the road I can get 325 or a little more if I'm conservative (no more than 9 - 14 over limit).




Shaydz

 

Took a trip to my mother's yesterday (East Coast rain) racked up 240 miles, the trip computers back up to 27.6 mpg! Still under 1K miles really trying not to gun it.

 

Can someone post some pictures of what the Injen CAI looks like under the hood. especially where the filter end up when install is finished....... thanks...

 

Don't have a digital camera, the filter should be just to the right of the fan cage looking down between the transmission and under the battery tray. It's a real pain to get it in there, going up from the bottom with a helper would seem the call.

 

that's where my sits. but dont you feel like it shoudl go down some more? i thought CAI, u know, go down further to catch more cold air.....

 

Here are some pics.

The best way I found was to slip it down angled under the battery, then rotate it into place. Able to not hardly touch anything.

If you have an Auto, you need to make sure you have at least an inch of clearance from the linkage cable. I posted pics of this a while ago (but can't seem to find them now). You might do a search.

Hope these pics help.

Shaydz

 

Have you noticed any problems when the car has been running for longer periods of time (when it's hot), considering the fact that the filter is sitting right next to the transmission and engine? This is one of my concerns, b/c the PR CAI sitting outside of the engine compartment and sucks in cool air. I don't understand how the INJEN does that while being between two hot components of the car? Explain it to me, so I can make a deicison!

 

Well, I can't (and won't) SELL the Injen to you. It's a personal decision that you alone must make. THere has been talk as of late about the temp of the piping. Regardless of how long I've been running (over 10 mins) on a hot day , The piping near the TB is cool (or rather not warm) to the touch. The lower pipe is very warm to the touch.
However, the air coming in the intake is ALWAYS cooler that what is produced in the engine compartment, thus the benefit over Pop chargers and such.
Plus the smooth bore piping and smooth angle produce a better vortex of air than say the stock monstrosity.
If you are comparing it to the PR, I'd say the fact that the piping is away from the engine on the PR will make the pipe a bit cooler, so a plus there. For me cutting a hole in my sidewall is a HUGE minus (personal opinion). If you are really concerned about the temp of a lower pipe on the Injen you can wrap it with kevlar or asbestos heat wrap. It will be oblivious of any heat off the engine.

This is not a sell, just my opinion. I know my HP is up, my car winds out farther than it did before (I have an auto) and on cold days, the power it produces is amazing - it WANTS to run strong.

I can't "explain" anything to you to make your decision - can just give you my impressions. There are hundreds of threads on this by people far brighter than I about Maximas. Give it a look.

Shaydz

 

I know, you're like me. That's why I asked for your opinion I'm weary about chopping a whole into my car, but I don't understand the benefits of having a CAI if the piping gets heated. There's lot of things to think about, but i'll be making my decision soon enough. Thanks again!

 

I struggled with it for about 2 months, but am real glad I went with the Injen. My wife never hears it if she drives the MAx (once in a blue moon) but I hear it all the time - IF I WANT TO. I love the looks when you take off next to an Acura or someone that whants to drop. It is always the WTF! look. And they'll always be the question -"What do you have under there?"
It really does make a difference about how I feel about my car's power as well.

Shaydz

 

believe it or not, I got 32.3 mpg on a recent trip...car had about 5500 miles then...dont know what the mileage was before the injen, but that is amazing mileage for such a powerful car!

 

Does it really matter if the pipe is hot? I mean, isn't the air moving through it quick enough to not be heated up? The idea that it's drawing in cooler air would be the benefit, IMO.

Tony

 

Basically, yea, you're right on.

 

What if you're sitting in traffic or at a red light? Then your car is essentially sucking up all the heat of the engine. Am I right?

 

not a whole lot more, but yes still more of the hot air. When you're at the track though, its cooler out and thats all that matters to me. I went for it for ease of install and looks. HP difference between most aftermarket intakes is like 1-4, so its basically all preference.