So I ended up ordering a combo pack of a oem z tube and REVup airbox and k&n filter from eBay from a infiniti dealership in Cali.

Installed it
Haven't noticed a difference

But here are some pics

I didn't take any of the cuffs from the original intake and replace them on the ztube since everything just seemed to fit in

 

The only thing you might notice is a slight increase in throttle response from the longer velocity stack. And a better sound from the z tube. That's about it

 

Just want to make sure that the REVup airbox is just the top part of the whole airbox assembly???

 

Velocity stack?

I wasn't looking for a performance gain just more enhanced sound. I wanna sell my ps3 and either get the plenum spacer or the berk hfc next

 

Rev up part is the longer gold colored velocity stack. Attached to the maf side of the airbox.

 

There are zero gains from just intakes...Fact! Intake is just the beginning, for WHP gains you need Motordynes plenum spacer to correct Nissan's design error. Quality HFCs like Fast Intentions and a high flow exhaust system, either Motordyne or HKS. Once all these bolt ons are in place an Osiris tune will give you enough WHP to keep a smile on your face.
Gary

 

If you really want to change the sound of your intake, you should take a look into the Stillen CAI. I picked one up cheap from a forum member recently and I dig it.

 

Would berk hfc or kinetix or CNT HFC good quality. I like FI HFC but they are super pricey =(

 

Good rule of thumb is to not cheap out on parts. If you don't have the money right now, save for what's worth it.

 

I just installed my ztube with the REVup airbox yesterday. I don't want a CAI due to the fact of having that possible chance of water being sucked up.

 

It's not a "true" CAI that extends all the way to the lower front bumper. It's more like a SRI with their own airbox.

 

So are you saying that the hfc that are listed are not worth the money. I've send and read lots of good things about berk hfc. Money isn't any issue but if I can get the same sound through another item but cost less and equally liked through the community then I rather do that

 

I can't speak to the quality/performance of any of those HFCs. Just throwing out a general rule of thumb as it seemed like you were ready to make a decision based on price alone.

 

Yeah I think I know what your talking about. I was really close to getting that intake but idk I read some threads on the REVup box and ppl were saying they were happy with it. But I think next I want some HFC for sure

 

I came from a revup airbox that I had on for two years with no complaints. I just got a good deal on the Stillen. If you're in SoCal, there is a member on here that has a ram air/cold air type mod that he can do for you also.