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Will an upgraded air filter (K&N for example) effect the sound of the exhaust?

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Old 12-30-2010, 10:00 PM
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Will an upgraded air filter (K&N for example) effect the sound of the exhaust?

Sorry guys, it's a stupid question. I'm a noob when it comes to cars. Learning, slowly but surely
Old 12-30-2010, 10:03 PM
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Yes, it will.

As will a ztube. Both are very good starting mods. You can buy a stillen ztube off a vendor for around 65 bux.
Old 12-30-2010, 10:04 PM
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Nope, won't effect exhaust sound at all. An air intake only effects the air that precedes the throttle body. It will have no effect on the sound of your exhaust. That is all up to the exhaust headers, cats and mufflers.

The K&N filter is a great lifetime mod to start with, but don't stop there. Upgrade your stock intake tube with one from a 350Z . That will get a little bit more vocalization from the motor because, unlike the stock G35 intake tube, there is no resonator baffle on it. It also creates a bit of a 'chuff' suction noise when the throttle is quickly opened.

I'll leave the exhaust commentary to the rest of the crew.

Last edited by kidtronix; 12-30-2010 at 10:09 PM.
Old 12-30-2010, 10:05 PM
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You'll learn a lot on here rockstar1292. It will make it a little bit louder. Not much but you'll notice it.
Old 12-30-2010, 10:26 PM
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Thanks for the responses guys. I believe I'm picking up my 2007 g35 coupe tomorrow from the dealer with my dad. He got the car for me because I needed my own, I've been racking up the miles on our leased mazda 3

We had it for about 14 months and there is 21,000 miles on it I hope to learn all about the G on this forum, which is why I joined. I think the car is drop dead gorgeous. I will post pics.

Anyways, instead of re-placing the tube, a friend of mine told me to purchase a short-ram air intake instead? I mean, you can never have a g35 that sounds too "mean"
Old 12-30-2010, 10:28 PM
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If you add just a K&N air filter you will not really notice a sound difference, maybe very slightly. If you add a ztube you will just notice a little more engine noise (sucking noise while idle and a little louder in higher RPMs). The G coupe exhaust is already louder than any factory air box you can put on these cars.
Old 12-30-2010, 10:30 PM
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That's awesome that your dad is getting you an 07 G. Your lucky! Looking forward to seeing what you'll do to the G.
Old 12-30-2010, 10:35 PM
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I know I'm so excited because it's one of my favorite cars, but then I'm super nervous because it's my first OWN car. I think he wanted it so he can drive it too :P

It's Lakeshore slate. I was told that's a classy color and not much can be done to it exterior wise.
Old 12-30-2010, 10:46 PM
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That is a nice color. Not to many of those on the forms. Mostly Black and different shades of gray.
Old 12-30-2010, 11:54 PM
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Quote:
Originally Posted by rockstar1292 View Post
Thanks for the responses guys. I believe I'm picking up my 2007 g35 coupe tomorrow from the dealer with my dad. He got the car for me because I needed my own, I've been racking up the miles on our leased mazda 3

We had it for about 14 months and there is 21,000 miles on it I hope to learn all about the G on this forum, which is why I joined. I think the car is drop dead gorgeous. I will post pics.

Anyways, instead of re-placing the tube, a friend of mine told me to purchase a short-ram air intake instead? I mean, you can never have a g35 that sounds too "mean"
Don't waste your money on short ram intake. K&N drop in filter and Z-tube is the best way to go.
Old 12-31-2010, 01:14 AM
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HAHA....as you can tell opinions are like....well you know everyone has at least one. The Z-Tube and filters like K&N will change your exhaust dba level but not enough to be noticeable or get you in trouble. What you will hear is all the air getting sucked in which most of us enjoy about 3500RPM and above....fact!
Gary
Old 12-31-2010, 01:21 AM
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To answer your question correctly, yes. I just took off my Stillen intake yesterday and replaced the OEM box back on to clean the filter. WAAAAAAYYYY big sound difference. Butt dyno indicates no hp difference since I drove the car over 100 miles today and absolutely no difference in pick up, at all. HP difference was felt after adding: MREV2, spacer, z-tube, catback and last but not least, hi-flo F.I. catalytic converters.
Have fun with the car and post pics. I've had my 06' MT coupe for four years and still haven't found a better bang for the buck to replace it. Enjoy.
Old 12-31-2010, 03:20 AM
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I agree with kidtronix. You'll hear more engine noise but not from the exhaust.
Old 12-31-2010, 12:22 PM
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It's the first time I hear anything about the 350z intake tube, I thought they were the same.

Just curious can anyone explain the difference in more details ?
Old 12-31-2010, 02:27 PM
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^The 350z has the same engine but Nissan made the 350z strictly performance where the G35 is an Infiniti so it only makes more sense to quiet down the luxury line. The 350z intake tube or ztube fits on the g35 perfectly and does not have any restriction, compared to the g35 tube that has resonators to quiet it down. You won't see any performance gain from just the ztube, maybe a tiny bit. But it's only 50~ bucks and frees up some airflow

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2007, 2008, 350z, air, coupe, effect, engine, exhaust, filter, g35, hp, increase, kn, noise, sound
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