I installed my injen intake today. I thought it would show more gains that it did actually. Will it take a few days for my ecu to know it's there? For anyone who has an injen you know the part that you take off the stock intake and put the four screws to hook up? One of the screws busted and it is very slightly loose and was wondering if anyone else had this problem and what they did to fix it? I don't think air is being lost, but is this possible? Also I have an auto and when I floor it, it sometimes takes a second to downshift and move sometimes it hesitates... anyone else? A ton of questiosn here please someone with the same setup let me know your experience. I unplugged the battery so the ecu would be reset after the install was done...

Also I just got a new oem muffler since the other one broke off and it seems more restrictive than my stock one did. My car seems to pull just as hard as it did with no intake and my old stock exhaust? Will this change in a few days? Also I thought the oem muffler was free flowing and that the only restrictions was the ypipe with both precats. If i get the ypipe will it be worth if if my new muffler for some reason can't get the exhaust out quick enough? Will I still get the gains? I can feel my car wants to move but it is being held back, and I am hoping it is just the stock ypipe holding it back and not the new muffler.

 

good luck with it...be careful with water .. the Injen loves to SUCK water in....

 

I also feel that i have lost a ton of low end power too... i don't know if it was really worth it.

 

To tell you the truth, stock intake is best for power, but the Injen does have a nice growl to it.

 

only if you let your car swim in deep water.

 

only thing you will gain from an intake by itself is a deeper growl.

 

yes you always lose low end torque...especially with an injen. and no matter what intake you have, the performance increase in minimal. all intake will give you a nice growl. only thing injen does that others cant is look pretty and shiny and carry the "injen" name.

 

It might take a while for the ECU to get used to it... but just get a y-pipe if ya really want the gains...

 

ya, but that Injen license plate frame you get with it adds 5-10 hp when installed correctly

 

I knew it was missing something... I should have got the license plate to go with it

 

Since you had to get a new exhaust, why stock? Why not cattman or frankencar?

 

I didn't want it to sound any louder and money was a small issue. I was also informed that our stock muffler or exhaust was already "free flowing" and that the only restriction was the ypipe. I figured without a turbo I wouldn't need anything more than stock to get the exhaust out any faster. Was I misinformed?

Back to the original question what does everyone else think of their injen... it's been a few days for me now, and I really don't see a difference in gain? Will it help me out more with a ypipe then it would if I had the stock air box with a ypipe?

 

The only thing you gain with an Injen is a throaty roar. Throttle response and top end power, is a loss.

 

good thing i'm getting a PR....just have to buy a stupid hole saw and pilot bit

 

I just installed an Injen CAI on my 2k2 yesterday. My initial feeling is that I DEFINITELY gained something on the lowend (i.e.: more wheelsping @ standing start) and on the high end (i.e.: 4.5k>) but, I do think I lost a little something bet. 3k-3.5/4k.

Overall, I have no regrets but, let's see how my track numbers are. Also, if I do manage to gain 4 mpg then it's more than worth it @ $2/gallon.

 

anyone have any comments on how they feel about it on a 3.0? I really want to know if it will help out more when i get my ypipe then if I didn't have an intake at all with just a ypipe?

 

^^I felt no difference whatsoever when I had my y-pipe on, intake on and intake off. Well execpt that cute little roar sound at WOT.

 

My gf's 03 SE Auto felt like it picked up a little up top, with no loss at the low end. This was with an Injen clone. I think with a better K&N filter it would have helped a bit more. I think I'm gonna buy her a Firm Fabrications WAI instead, because the risk of water/sluch getting on the filter is just too great since that area is very open where the Injen sits. Iits too bad tho, cuz the Injen style looks 100x better than the WAI style.

 

WHEN I FIRST PUT MY Y PIPE ON, IT LOST TORQUE BUT HELPED GAIN TOP END. BUT THEN AGAIN WHEN I INSTALLED MY inJEN AFTER, IT BROUGHT BACK MY TORQUE, NOW IT PICKS UP MUCH BETTER, THEN TO TOP IT OFF, I PUT THE UDP AND FELT MORE OF A DIFFFERENCE, ACROSS THE WHOLE RPM GAUGE..

 

must you type in all caps...

 

Must U Care!!!!!

 

actually i'm sure i'm not the only one. its an eyesore. don't do it again biatch : pimpslap : lol jp

 

Is the gain worth getting the ypipe then... you said you lost torque but it came back with the injen. I have the injen on so if I add the ypipe im looking at some good gains right?

 

I've had the injen installed for quiet a while on my 3.0. I have to say that I noticed a difference in the low end range, gaining more tire spin. As far as water is concerned.. I have driven threw enough bad weather to know that I would have to hit a swiming pool to kill my engine I disconnected my battery when I installed the Injen, I never did it with the intension of reprogramming my ECU however.

~Wolf

 

since we are talking about intakes.. i just bought a stillen intake for my 00 max. Is tehre any loses or gains in this intake? ie torque? what am i benifittin besides the "growl"?

 

After installing the Injen intake on my 2k auto I felt an immediate gain on the throttle response. I am not sure if people understand the dynamic of the intake. It has a throttle tube which "pre-charges" the intake with air. That will equate to a better throttle response, sure it won't be as good as a "true" cold air intake, like Place Racing, but I feel the throttle response is better than the stock.

You wll lose the high end power as the flow is more restrictive at the high end, almost like the intake is choking off the air.

 

The gain of the Y pipe is worth getting, but i would also suggest you get a stillen or a cattman. The y pipe is the best bang for the buck for perfromance, you wont be dissapointed. But if you go y pipe, your gonna wanna go headers.. be wise about ur decision! I have the injen and stillen y pipe, i love the performance and sound of both of them!!

 

IT LOOKS LIKE YOUR THE ONLY ONE COMPLAINING, IF ITS EYESORE YOU SHOULDNT BE ON THE FORUM. MIND YOUR BUSINESS, ILL DO WHAT I WANT!

 

lol ok

 

injen has been on for 3 years, no problems with water. Don't take it snorkeling and your cool.

 

I just drove 30 miles in pouring rain with my Injen and no problems. Lately it has been raining like a bish in so cal and I haven't had any water issues even though I'm lowered about 1.5 inches with my coil overs. Just watch out for those deep puddles.

 

why not just get a bypass and get the whole issue over with...$40 and you're done. of all the threads on injen i've ever read, they all said injen had small or even lower gains than when they started....so injen's off my list. go with the Y-pipe/headers combo...you'd be happier

 

cuz bypass valves aren't for injens....

 

You can fit an AEM bypass valve with an Injen... its been done... alternatively, you can also get the splash guard that Injen makes for the intake... its pretty much just a shield that goes around part of the filter...

 

i could have sworn they had bypass valves for injen...do you have to cut the piping to put the bypass in somewhere?

 

Yes, ya do...

I didn't do it... but here are some who have:

http://forums.maxima.org/showthread....ss+valve+injen

http://forums.maxima.org/showthread....ss+valve+injen

http://forums.maxima.org/showthread....ss+valve+injen



Btw, there are many more of these discussions if ya do a search... more than I expected....

 

like i said...bypass valve can be put on the injen, but who said itwould be easy to get it on

 

I didn't...

 

I heard that if you upgrade the filter on the intake to a larger K&N it improves throttle response and so forth...

 

i didnt say it coudlnt be done. i know it's been done, but you have to cut the piping and whatnot.... everyone just assumed i didnt know lol