^correct...IlyaKol wrote:Stock airbox, MAF, ZTube, Throttle Body. That's the order it goes in. The Z Tube just replaces that plastic piece that has the 'chamber'.cruzad3r wrote:can you two post a pic/link on your ztube. they're not expensive but i thought the stock airbox has the MAF holder build in, how did you guys transfer that to the ztube?



Did yours come with new couplers? I only got the tube itself and getting my stock couplers on it was a PITA. I literally broke 3 nails and cause the pillow under my right middle finger nail to burst/bleed. It was RIDICULOUS.CPJ LB wrote:
^correct...
I found some pix when I initially installed the Z tube.
Stock tube vs Z tube
MAF does not get affected
Stealth....
CPJ LB wrote:it's fine that you're doing the tune Ilyakol...like you said, the short list of mods you have will be fine without a dyno.
in addition to the eco map, my tuner has it set to where if I were to floor the gas or get on it...the sport tune automatically kicks in -- that was a bonus feature. (for emergency purposes like getting out of harms way, etc)
I keep my setting in 'sport' for the majority of time...but also in eco setting.
my mpg has ranged from 15 to 19mpgs (depending on the type of driving and setting)
as far as power added from the tune, yes...it's provided, but it also depends on the supporting mods...here is a breakdown of my prior dynos and I've had the Uprev for over a year.
FACTORY RATED 06 M35sport at the flywheel = HP: 280 TQ: 270 (which is rated very low at the wheels)
Initial Uprev
3/22/11 - Baseline run 91 octane
NEAR STOCK (K&N drop in, stock mufflers w/xpipe and 2.25"piping from cats) =
power at the wheels:
whp: 229 @ 5953 A/F: 13.79
Tq: 228 @ 4938
3/22/11 - Adding TUNE: UPREV w/Osiris
power at the wheels:
whp: 252 @ 5952 A/F: 12.98
Tq: 238 @ 4767
4/18/11 - 91 octane(5/16 MD plenum spacer, K&N drop in, z tube, 2.25" dual exhaust piping from cats - xpipe, high flow resonators - to stock mufflers)
power at the wheels:
whp: 265 @ 6300
Tq: 245 @ 4745
11/15/11 - 91 octane
(5/16 MD plenum spacer, MD MREV2, MD Isothermal gasket, K&N drop in, z tube, G35 Ypipe,Megan exhaust 2.5"mid pipes & axle backs, NGK spark plugs)
power at the wheels
whp: 282 @ 6408
Tq: 255 @ 4693
*Test run for lower end tq: 270 @ 2691 rpm
I now have HFC's and will put on the Motordyne xyz pipe to get a test run on numbers, but from my butt dyno, since adding the HFC's I've felt a huge difference in overall power...the car definately pulls hard.
Driving in manual mode allows you to use the entire powerband...I don't go past 7000rpm to prevent wear and tear of the rods, springs, etc(as you can see the majority of my HP is at approx 6500rpm's)...those that have built motors don't have to worry about going "too" high in the rpms....
the best thing I enjoy is the drivability of the car..."its more fun to drive"....
CPJ LB wrote:The couplings for the z tube were from the stock tube and I had extras....the z tube allows free flowing air....I got mine for cheap.
Hey Twizz...the mrev2 did give me power ...very noticeable. A lot of pulling power. Not sure with a CAI....are you tuned?
IlyaKol wrote:I was in the same position TWizz and a friend of mine who has a 96 Maxima (stock it has a 3.0 motor) that is swapped with a VQ35, 6spd VLSD, and turbo...told me the MRev2 isn't worth the money unless you can find a used one for a great price.
He said same thing with headers and cats.
My plan is to do the spacer (tomorrow morning or late tonight), ZTube, and eventually mufflers and possibly mid-pipe.
But it really depends on your plans for the car. My plan is to just 'open her up'. She's powerful enough for me as is.
Yeah me too. And free dyno runs would be nice. It really has dragged on more than it has needed to. I will admit that I wasn't able to respond to them on an occasion or two, but usually I did the next day or day after. But they have gone 3-4 days between responses a bunch of times already. I believe I bought this at the middle of April (12 or so). It's now almost June.CPJ LB wrote:^ damn bro!!! I'm sorry to hear this happening to you....
I'm amazed to hear that Uprev took so long to help (resolve) your issue...
Hopefully it'll be a better ending... good luck with everything...
...I think they should refer you to a nearby tuner in order to give you free dyno runs!!!!
Where did you get the part for your 06-07 M35 to 08 Sport bumper swap?rgb129 wrote:IlyaKol wrote:
I do have the bumper in mind...but I'm worried I'll have gaps like someone people did when they converted.
You won't have gaps if you get a genuine infiniti bumper. I have one on mine and fits perfectly...no gaps.

Did you get your Dyno yet and do you feel any difference ?IlyaKol wrote:Another update. Tune arrived in my email this evening. I went ahead and flashed it to the car and everything seems to be working as it should (tune #'s lining up, parameters such as RPM, etc. lining up).
Butt dyno isn't making me feel much...but I will get it dyno'ed when I get back from Ukraine in early June and we'll see what I end up with.
thanks for the info to find the bumper swap thread, i tried searching but it didnt come up.IlyaKol wrote:The exact parts are in the thread located in the FAQ that is stickied.