Hi all, I am new to the G35 world, I purchased a 2006 G35 AT coupe about a month ago. For now all I have done is added a sub to the stock bose system through the help of this forum. I am looking to enhance the sound of the car so I would like some input regarding intakes. I have read multiple threads with contradicting information, some new some old.

I am not worried about a few hp gain/loss from heat soak that I have read about. I live in Canada where it is cold for the majority of the year. My motivation is strictly sound, so any input you could provide would be greatly appreciated.

I am going to hopefully order a Z-Tube tomorrow, I have tracked one down (waiting for pics). I have also purchased a drop in K&N filter, however I have not yet installed the filter (I have time to return the filter). Here are the options I am considering in addition to the Z-Tube (and my assumptions):

• Drop in K&N filter ($40) - although from my reading this may not be as loud as a pop charger, or stillen (though i do not understand why)??
• JWT Pop Charger ($109) - apparently this is louder than the drop in K&N (for unknown reasons)??
• Stillen Intake (used $140) – Similar sound to JWT but better for heat soak??
• Stock 350Z air box (Free from a friend) – not sure of the advantage here??

What is it about the JWT pop charger or Stillen Intake that makes it louder than a drop in K&N (if this is true)? Is it the larger area around the filter itself allowing for more air? If so, would a drop in K&N have the equivalent sound as a pop charger if I was to do the airbox mod, where I would run additional ducting into the bumper grille allowing for additional air into the stock box? https://g35driver.com/forums/engine-...-anti-56k.html

I would like a deeper throatier sound. The general consensus from my reading was Ztube/drop in K&N, so I went out and made my purchase. Further reading has made me doubt my decision. I am thinking of doing a muffler delete at some point in the future, unsure if it’s going to be before or after the resonator, but I will leave that for another date.

Any input on what combination will give me the best sound of the bunch?

 

Best sound would come from the pop charger. It makes more volume because it's an open air filter as opposed to the stock airbox which is a sealed compartment. The airbox mod will induce a touch more sound but not nearly enough to match the JWT. The Stillen is the best compromise because you get good sound and no loss of performance.

 

Tim nailed it....^....the Stillen Z-Tube/CAI combination is the best for sound and zero loss in case it ever gets hot in the frozen north!
Gary

 

jwt witth ztube is a great sound and about as loud as you can get your intake. Hot days you will experience some heatsoak, imo it's not nearly as bad as some people make it out to be. Plus I don't usually try to race around on hot days anyway.

 

I agree with Xet, the JWT Popcharger is loud. When I put my new exhaust on, it was too loud for me so I went back to Ztube/Rev up box.

 

Thanks for all the replies. I guess I am going to be returning the drop in filter and going with either a JWT or the Stillen.

Now the question is which one. I did some more searching, and I guess the last question I have is for those that have had or heard both the stillen and pop charger. If sound was equal, seems like stillen is the way to go, no questions asked. However, that does not seem the be the case.

So my last question is, is the sound difference between the 2 considerable/quite noticeable, or is it only where the connoisseur's would notice a slight difference in sound. Reading and Youtube only help so much when comparing the sound, everyone has different recording equipment and environment, I don't have anyone around me where I can listen to their cars in person. Thanks again for the help

PS - I did order the Z-Tube today, so can't wait for that. Is conceptzperformance.com reputable? I am considering ordering the JWT from them, or the stillen used from the marketplace.

 

I have the Stillen and love it. Very clean looking. Although, I will be supercharging as soon as I get home from this deployment!

 

The JWT does sound pretty meaty and racy when you are at WOT. If you don't live where it gets to be 100 degrees outside, then you might try that one first. All this talk about it has me tempted to put it back on!

 

I personally went with jwt but it's all just personal preference. Videos and such won't give you the perfect feeling of how it really is, but since you don't know anyone else with the other intake, who cares? I think you'll be happy with either intake.

Btw, I would suggest using the marketplace for either used or from our vendors here. Most of the time you can get a better deal from them and you can know their reliability better than random sites (but conceptz is a good one, they are actually a vendor iirc).

 

Good point, I got my Z tube and all three of my intakes from the "Marketplace" and even my exhaust. I would def. check there first!

 

why would the stillen produce more sound than the stock box cus theyre both the same? becus of it uses a cone filter?

 

if you honestly just care about sound. Get a Injen CAI.

Ive had the k&n paired with a g-tube and all it did was hiss when i stepped on the gas, i paired it up with a z-tube and it gave it a deeper growl + the hiss. Ditched all of that and got a Injen CAI where the tubing puts the intake filter by the opening of the bumper. Damn thing is waayyyyy louder than the JWT pop charger (you can feel it in your chest when you stand next to the thing revving). How do I know that? I have the JWT pop charger with the Stillen shield now. Why do I have that instead of the Injen? BC of hydrolock which is the downside of CAI.

The JWT or the Stillen filter isnt much different. Its the shields that are different. Sound wise they are the same.

I believe it really has to do with the material of the tubing that makes the difference in sound. If its rubber tubing, obviously its going to baffle the sound more. If its a aluminum tubing you would think it bounces the sound more. Makes sense?

 

Hmmm interesting, I am concerned with sound, but I don't want any problems either, such as the hydrolock you mentioned. Anyhow, what is the stillen shield you have? I thought the JWT had a heat shield, and the stillen had a box that looks like stock?

So you would recommend an aluminum intake tube instead of a stock 350Z intake tube? I have seen cheap aluminum tubes on ebay for $40, but I decided to order a 350Z tube (rubber/plastic) for double that price. I was thinking of ordering a JWT pop charger today, but I am interested in hearing what this stillen shield is.

 

Don't want to make your choice more complicated ha but you should also check out the R2C. Sounds great and they have a variety of finishes. They come with a heat shield that seals against the hood, don't know how effective it is though

 

It's very effective^^.

That's the intake I run and have been very happy with it. OP that is also a good choice for you, I didn't mention it before because not many G owners have one.