INJEN COLD AIR INTAKE

[Tedward67]

Good Morning Infiniti Lovers:

I'm an old guy, 71 but I still love to mess with my car. I have a 2007 M35X with a little over 29,000 miles on it and I would like to get some advice from some of you that might have installed an injen SP1991P Cold Air Induction System. Do you really have to take the front bumper and wheel well cowling off? Did any of you have any trouble with the "check engine light" coming on and was there noticeable increase in torque and horsepower with this install? Do you feel this is something that I may want to get my mechanic involved with? Any other tips or suggestion you might have? I'll take all of the help I can get!!!!! Thanks so much for your time and especially your knowledge.

Ted

[atlM35]

Hi Ted,

You won't get a lot of power from the cold intake, but the throttle response will be nice, making the car more fun to drive... along with the nice sound you get when you open up the throttle.
You don't have to remove the front bumper if you jack up the front driver's side and remove the wheel and fender liner. If installed properly, there should not be any check engine light.
Good luck!

[Tedward67]

Thanks so much, Josh. I'm very grateful for your help. One of the reasons I purchased my M is the fact that every car I buy has to have a "fun factor" and the M certainly provides me with that. As you said, this new air intake will just add to that fun factor. Again, thanks!

Ted

[cruzad3r]

if your heart is set on the intake then no one can stop you. my advice is instead of doing the intake, you can upgrade the exhaust first. reason being - money spent on the right place. you can do muffle back, y pipe back or complete cat back. also there are plenty of choices for exhaust so you can pick one that fits your needs and budget.

[Tedward67]

Thanks for your response. I can certainly appreciate what your saying and it all really makes a lot of sense. Being retired I have limited funds for "my toys" and special projects. In all honesty, I just want to get as much information as I can to be sure that I'm capable of doing this project. It's something that I can afford and I also feel I can perform the installation. But I do understand what you're saying. What's going in the front end needs to have someplace to go on the rear end too. Maybe someday.....I hope! Thanks for your kind response.

By the way, would a cat-back system be just as effective as a complete change of the exhaust system. I'm considering my budget here and wanting to to do the right and best thing, but also at a reasonable price.

Ted

[cruzad3r]

megan are fairly cheap and widely available. i have greddy. if you search this site or search ebay, you'll see other choices.

installation is deffinitely doable but I don't know you're condition especially when you're "retired". no offense, i just don't want you to hurt your back or something worst. back to instllation, run the front onto a ramp (you can buy these at any parts store) then jack the rear up to appropriate height. support it with two stands and spray the crap out of those bolts/nuts with plasterBP. leave it on for about 3 minutes and start unbolt them out. depending on which section you're replacing, you can focus the stand to that area to lift up and give you more room to work.

[Tedward67]

Thanks so much! After your first response to me, I'm certainly leaning in the direction that you suggested. It truly does make more sense. And no offense taken. I'm grateful for your concern about my ability to do projects like this. Fortunately I have a mechanic that takes such good care of my cars and he too loves to do things like this. He likes the fact that I keep my cars so clean and do preventive maintenance on them all the time. I probably waste a lot of money, yet I never have any problems with my M.

I'll stay in touch, if that's OK. You've been a great help and I appreciate it very much.

Hope you have a great weekend!

[Tedward67]

I hope you don't mind another question. If I install a cat-back and an injen cold air intake, is the combination of those two changes going to mess with what the computer wants to see? Will there have to be any adjustments made to the computer so I don't get a "check engine" light?

By the way, what is plasterBP?

Thank you!

[cruzad3r]

plasterPB - penetrating oil



if you're going to do both, you're best find an uprev tuner around you that can do a tune on the car. see on the main page where there are a lot of talk about uprev tuning and its result

[Tedward67]

Thanks! I'll try to find that locally and if I can't I'll go to the Internet.

I wanted to let you know that I tried to find the Greddy catback online and finally got so frustrated that I called Greddy directly. I was told that they didn't make that system anymore for the '07 M35 so I started looking at the Megan's. What would you recommend, the catback or the axle back? Do you think there's any difference in performance between the two? I'm still going to install the injen cold air intake. Did you use the Greddy catback or axle back on your M35?

Again, I can't tell you how much I appreciate your help and wish I could do something for you to express my gratitude.

I hope you have a nice weekend!

Ted

[atlM35]

There will be no problems with installing a cold intake and exhaust.
You shouldn't get any lights if you keep the catalytic converters and O2 sensors in place... what you will get is a lot of noise for a lot of money with not a lot of power increase.
The tune brings the intake/exhaust upgrades together and you will find the most benefits once that is done... you're looking at about $600 for the tune itself.

To locate tuners:
http://www.uprev.com/dealers.php

IPS Motorsports ~10 miles (directions)
8333 Green Meadows Dr N Ste C
Lewis Center, OH 43035
www.IPSmotorsports.net
740-657-FAST (3278)

Slowmotion Motorsports ~11 miles (directions)
687 Kintner Pkwy
Sunbury, OH 43074
slowmotionmotorsports.com
(740) 965-1728

[Tedward67]

Thank you, Josh! Good information to have in my arsenal of research for this project.

Ted

[cruzad3r]

if you want catback, you will have to replace the y-pipe. that piece is separate and will cost you about 150 bucks. you will have to source one from HR motor as the DE motor will not work. VQ35HR vs. VQ35DE. there is one guy here that bought a piece on ebay and it's a direct fit. again, search this site or just scroll through several pages on the main m35 page.

i would go with everything starting from the y pipe. if you do not touch the cat itself, then you will not get any CEL. but even if you have HFC replaced the old CAT, others here have reported back with favorable results and no CEL.

megan also have parts that will fit this car. their parts are largely based of the 350z which in a sense is the same motor. there's also a link that's listed all interchangable parts. the only caveats here is the AWD vs. RWD on the M35. Not a lot of people have confidence that parts will fit "directly" on the M35x because not a lot of people want to be a lab rat and test out the parts. those who have the RWD also have the 350z lying around so it's easier for them to tacklet the test.

[Tedward67]

Cruzad3r, thank you for your generous advice. I certainly appreciate it! This "project", which started out as just wanting to install a higher performance air intake, gets more complicated and more expensive by the day. But, it's all good! I want to do this right and I'm so grateful for guys like you and all of the other enthusiasts who've responded to my original post.

I noticed that you're driving an '06 M35X. Aren't we driving essentially the same car? If so, did you do a catback? If so, did you have to do the same things? I'm a real novice here so please bear with me. Would you please tell me what HFC and CEL stand for? And I should get a y-pipe for a VQ35HR engine. Is that a pipe I can get from Megan, Amazon or other parts supplier?

Did you have to have your car re-tuned after your new exhaust installation? Thanks again for your help. I hope Sandy didn't "bite" you too badly. Best! Ted

[Wallstreet]

HFC stands for High Flow Cats, meaning better flowing and performing catalytic converters. CEL simply stands for the Check Engine Light. And I don't think it is mandatory to get a re-tune if you have installed an intake and exhaust, it is just commonly recommended due to the fact that it safely maximizes all the potential of all that increased air flow in and out of the engine! I also have a 2006 M35x and am looking to put exhaust on it, hopefully fairly soon. I really want the Megan cat back system due to it keeping the factory-looking quad exhaust tips. I do wish they were a rolled edge design and a little larger, however. I may end up having different tips welded to the Megan mufflers. I also either want to modify the stock intake or get a cold air intake simply for the added sound (I refuse to call it noise )

On a slightly different topic, has anyone on here or any other sites had the Uprev tuning done to an AWD model M? Just curious as to how it went/would go and also where in the heck to find a shop with an AWD dyno...

Hope that helps you out some, Ted!

Jason

[Tedward67]

Thanks, Jason! It sure does. I appreciate it. Being retired I've got to watch out for my bucks and always have trouble justifying these kinds of expenditures with the wife. The fact that you've reassured me that a tune-up isn't necessary, for my wants and desires, will save me some $. Yet, I certainly understand why some owners doing a project like this would want to maximize their investment and the performance of their car. If I can get a little better throttle response, some additional HP and increased torque and better sound, I will be a happy camper.

I really like your idea of welding the original tips on the Megan mufflers. You're able to then maintain that stock look yet you still have a "sleeper"!

I think this winter I'm going to try to purchase and install the cold air intake. Then maybe next summer I might be able to afford the exhaust system. Please stay in touch, Jason! I sure would like to find out how you handle the Y-pipe issue and if you have any other special tips.

Thanks again for all your help and the anachronism identification. I guess I've got to get up to speed on some of this stuff. Hope to talk to you again. Have a Happy Thanksgiving!

Ted

[CPJ LB]

Welcome Ted...

...keep it simple, invest in a Z-tube (keep the stock air box and the Z-tube replaces the intake tube), then pick up a Plenum spacer...then eventually get axle back mufflers to start... you will increase your power output -- when you are ready, you can get a tune for your car to be complete.... the intake parts for the M35 are interchangeable with the G35 so you can pick up inexpensive parts everywhere on this or other G35 Forums....

[Tedward67]

Great tip! Thanks. I am looking to do this right, but also as inexpensively as I can.

I think we have the same color M. Yours looks REAL sharp.

[KoMikeey]

instead of going with greddy i think you should go with berk high flow cats, and megan exhaust.

[cruzad3r]

do you know how to post picture? if so post some here.

i'm not sure if you covered this question or not but what exactly do you want out of this machine?

[Tedward67]

No, I don't but could probably figure it out. All I have is a very stock '07 M35X. The only modification I've done to it is install a clear bra on the front and some of the other surfaces that get hit with bugs, etc. And I recently installed, myself, a GROM iPod adapter for my sound system. Now all I have to do is take some pics!

As I mentioned in my first post, I'm 71 and retired, but I still love cars. Especially this one. Every car I buy has to have a " fun factor" and this M35 is great. I would like to try to get a little better mileage and at the same time have a project. I'm pretty sure that I can install the injen air intake myself and in talking to my mechanic/ friend, he said I could use his lift and the two of us could install the Megan exhaust system. And yes, I would still like the feeling of more HP and torque! I think what I've mentioned here might help me reach the goal of possibly better mileage. What do you think?

Again, your M really looks sharp. What all have you done to it, if I may ask? Hope you have a good weekend!

Ted

[Twizz]

I have the Injen CAI as well as a Stillen catback system. I love the way they sound. I must admit, I have yet to get it tuned though. But the sound that I get is what makes it work for me. When you hit the gas, you hear the intake open up and it sounds sweet. The exhaust isn't too loud which is why i didn't go with Greddy or Megan. Next up is the tune and then I am done !

[Tedward67]

Thanks, Twizz! When you talk about sound, I'm concerned about that too. I don't want the car to be loud all of the time, but when I "get on it" I would like a little more authoritative sound. If I made this car really loud just driving it around like an old guy. which I am, my wife would kill me. Is that the way the Stillen reacts? Where and how did you get the Y-pipe to install your cat back and did you have any issues with the CEL after installation?

Was the LED conversion a hard project to accomplish? That's one of the things I too would like to do. I bet it really looks sharp!

Thanks so much for your input. I really appreciate it. And I thank you in advance for answering my questions here. Hope you have a great week!

Ted