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Old Apr 23, 2003 | 06:55 PM
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Arrow For those of you who asked for an InJen write up...

I'm doing this from memory, so if I forget something, please feel free to add it in for everyone else's benefit. My apologies, just in case I do leave something out!

You will need:
Flathead Screwdriver
Phillipshead Screwdriver
10 MM Socket wrench (and extension if you've got it)
A friend to hold air filter in place for you

1. Remove all plastic fasteners on the top of the front bumper and all the metal fasteners underneath which hold the brush guard (and the front diffusor if you've got the Track) to the bumper. You don't need to actually remove the bumper, you just need to be able to get your hands in there in front of the radiator to install the air filter.

2. Disconnect the negative battery terminal.

3. Remove the Mass Air Meter from the stock intake piping with a screwdriver. Make sure to set this aside on top of the engine cover where it won't get pulled down underneath something.

4. Begin to disassemble stock intake. I started by removing the air filter, the the air box (which takes a little prying because of it's position), and I worked my way up to the throttle body.

5. Install heat shield on exhaust manifold. This is where the socket wrench extention will help out a lot!

6. Prep the thinnest/shortest piece of hose by placing the smaller clamps on either side. Slide it onto the throttle body half way and tighten the top clamp.

7. Remove the nut on the intake manifold, just above the strut bar.

8. Insert the long and angled metal tube into the hose and place it's extension/"arm" onto the bolt you just removed the nut from. Make sure you've got everything lined up the way you want it and then replace the nut to it's original position.

9. Prep the second shortest piece of hose with the two larger clamps, and then fit it halfway on the metal piping. Tighten the top clamp.

10. Insert the black plastic piece for the Mass Air Meter into the remaining half of the hose. Position it so that the Mass Air Meter fits in with enough slack in its wires. Make sure the metal end is facing towards the front of the car.

11. Prep the large hose with the appropriate clamps.

12. Insert large hose through the hole left behind by the stock air box. It will take a little forcing, but it does fit (snuggly) without any modifications.

13. Fit hose around MAF and tighten the clamp.

14. Connect air filter to the remaining metal tubing and secure the clamp.

15. (This is where your friend can help a TON!) Get underneath the car, pull down the front diffusor (if applicable) and insert the metal piping into the hose. Position filter to desired place. And as the filter is held in place, reach through the top opening by the hood lock and tighten the final clamp securely.

16. Reinsert the Mass Air Meter and tighten the screws.

17. Replace all the fasteners for the front bumper (and don't forget to put the brush guard back on like I did the first time! lol).

18. Reconnect the battery and you should be good to go.

It took me and hubby about an hour and a half from start to finish and I also had him look over this write up to make sure I didn't forget anything, but hey, it's been a while since we did this.

You will need to reset everything inside your car--radio stations, clock, etc. since the battery was disconnected, but since you had it disconnected during the install, the ECU should adjust itself properly for the new intake with no problems.

And if you come up with any other questions along the way, you're more than welcome to PM me and I'll get back to you as soon as I can!

I hope this helps some people who were wondering about doing the install themselves!
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Old Apr 23, 2003 | 09:25 PM
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ok but how does it work once installed..any seat of the pants feeling on performance or anything that is noticed? Or is this a something that has to be dyno'd to be appreciated.
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Old Apr 24, 2003 | 05:25 AM
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Originally posted by 350z4steve
ok but how does it work once installed..any seat of the pants feeling on performance or anything that is noticed? Or is this a something that has to be dyno'd to be appreciated.
It starts pulling noticably harder when I get up around 4000 rpms than it did before my install. I haven't even had mine dynod yet (which I really need to do before I get my headers and Y pipe), so I don't know what kind of gains it actually gave me.
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Old Apr 24, 2003 | 07:56 AM
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Thumbs up

Thanks for taking the time to produce such a write-up. The little people like myself who want to learn more about installing our own parts really appreciate it.
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Old Apr 24, 2003 | 12:36 PM
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Originally posted by Alev
Thanks for taking the time to produce such a write-up. The little people like myself who want to learn more about installing our own parts really appreciate it.
Yep what he said Thanks a lot!


Ps- By any chance you have pictures of some of the installation?

Last edited by Ricky; Apr 24, 2003 at 12:39 PM.
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Old Apr 24, 2003 | 01:24 PM
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Originally posted by Ricky
Ps- By any chance you have pictures of some of the installation?
I thought of that when I wrote this up. I don't have any pics from the actual install, but I'll try to take some pics this weekend to give everyone an idea of where things go!
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Old Apr 24, 2003 | 01:37 PM
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Thanks!

Nice dog.

I see you are in Dallas, ever go to any Rangers games?
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Old Apr 26, 2003 | 04:02 PM
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Default Okay, here are some pics!

This one should give everyone an idea of whole everything fits together overall.
Attached Thumbnails For those of you who asked for an InJen write up...-z-meet-003.jpg  
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Old Apr 26, 2003 | 04:03 PM
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Another to show where the "bent" hose goes to get in front of the radiator.
Attached Thumbnails For those of you who asked for an InJen write up...-z-meet-004.jpg  
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Old Apr 26, 2003 | 04:05 PM
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This one shows where to get the "arm" off the piping onto the top of the intake maifold. The pic is taken from the driver's side angle.
Attached Thumbnails For those of you who asked for an InJen write up...-z-meet-005.jpg  
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Old Apr 26, 2003 | 04:06 PM
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Last one! Shows where the Mass Air Meter goes back into the intake piping. Hope these pics can help everyone out when doing their own install! Like I said, you can PM me with any other questions you may have. Good luck!
Attached Thumbnails For those of you who asked for an InJen write up...-z-meet-006.jpg  
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Old Apr 27, 2003 | 06:55 AM
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Thanks a lot! I should have mine installed by Tuseday night, I'll post pics
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Old Apr 27, 2003 | 11:13 PM
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Dyno results?
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Old Apr 28, 2003 | 05:39 AM
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Originally posted by blascelles
Dyno results?
Dunno yet. Still have to get it done. I'll post as soon as I go.
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Old Apr 28, 2003 | 12:35 PM
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Okay I got my intake in and I understand 99% of it except, Where do I put the head sheild? Do you have a picture of what it looks like when it installed so I have a general idea? Thanks!
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Old Apr 28, 2003 | 04:04 PM
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Okay, Ricky. I hope this will help a little. It's kind of hard to get a good shot of the heat shield once it's installed, but I did my best.

I took this hanging over the driver's side, in front of the wheel. You can see the front strut brace and the long curved pipe of the InJen. If you'll look underneath all that, you'll see most of a bolt and a brushed piece of metal. This is the front side of the Heat shield. The back of it is pretty much impossible to see. But if you'll position the heat shiled with the black side facing down, there's only one way it will fit, which should help you get it in there. Again, I hope this helps, since you can't really see a whole lot.
Attached Thumbnails For those of you who asked for an InJen write up...-picture-006.jpg  
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Old Apr 28, 2003 | 04:08 PM
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This thing looks bad-*** in person...you two did a great job with it Christi, it looks really professional, not to mention intimidating! It'd be nice to know the gains though, and see if it's worth it.
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Old Apr 28, 2003 | 05:02 PM
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Originally posted by Old Skooler
This thing looks bad-*** in person...you two did a great job with it Christi, it looks really professional, not to mention intimidating! It'd be nice to know the gains though, and see if it's worth it.
Hee Hee. Hubby's friend is in good with the guys over at 21st Century (Lingenfelter's Dallas shop) and I might see if I can get my car done over there. You're more than welcome to come along if you wanna see some incredibly SWEET (not to mention insanely fast) Vettes.
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Old Apr 28, 2003 | 05:24 PM
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Thanks a lot For some reason I was under the impression you can install the heatsheild without removing the stock air box first, thats why I was very confused, but now with your picture I know for a fact the airbox has to be removed so I can reach down there. Thanks a lot
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Old May 1, 2003 | 12:08 AM
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i just ordered my injen intake 3days ago....dont these things come with directions?? or is that extra??
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