Has anyone just done a z-tube mod? It seems everyone does it as a combo but I don't really care to. And I'm only doing it for the sound. Just want it to be a little louder thats all.

 

I just did it yesterday (z-tube & stock filter) on my 07 G35 coupe. Didn't notice much diff in anything.

I cleaned my MAF and throttle body too... now all I have is a funky idle

 

you may have messed something up^ you mean mass air flow sensor right?

 

Define funky...But thats bad news.

 

Did you disconnect the battery before messing with the throttle body? The idle relearn procedure may fix it.

 

yea maybe..but its a PITA and very hard to get right.

 

Which is why I just disconnect the battery for approximately 20 minutes every time I need to reset something, finish it off with some spirited driving and everything works fine.

 

For sound I would do z-tube with pop charger..

 

i just ordered a ztube. now waiting on the pop charger. hoping for good results

 

Good choice blues, the z-tube will change the sound and by adding a quality drop in filter you'll be fine. New Noob members don't realize when they add the pop-charger during warm weather it will cost them a ton of RWHP due to that aluminum piping heating the incoming air, that's called heat soak. Alternatives are Stillens CAI which is made of plastic composite or like I advised, an aftermarket drop in filter like AMSOIL or K&N....Gary

 

No. Left it connected. Did a test drive and the idle was too high (1k) and didn't come down as fast when I let off the accelerator.

Then I tried disconnecting the negative for ~30 min and did some more driving (some very "spirited"). No change.

I'm trying to avoid having to do the idle re-learn (because I heard it's a PITA) so we'll see how the next couple days go - If the car/computer adapts a bit better or not.

Sorry to hijack

 

Sound wise, def. I have the z tube w/out the popcharger and there was clear difference in stock g-tube and the z tube (at high rpm). At low rpm its the same.

 

i installed a ztube and an apexi drop in filter friday and didnt notice much of a difference. Just a little bit of a sound changed under the hood. But im sure it didnt hurt me any. Like said above, a good quality air filter will go along ways

 

Here's what some people said about this last week. Might help you out.

https://g35driver.com/forums/g35-cou...my-g-make.html

 

i hate the a/c rub with an aftermarket intake