Intake and exhaust question

[C-grunt]

Hey guys Im looking to start modifing my 2010 G37 sedan, auto trans. My thinking is some intakes and a HFC. I love the sound of the stock exhaust but I want it a bit louder and this is what I have been told to do.

On top of that it is supposed to have a decent gain in power. Whats the gain I could expect? I know every car is different but what is the average?

[joe603]

I went with R2C intake and love it! The build quality is great and the install was a breeze. The engine sounds as it should now

For the exhaust, I looked into doing Tanabe mufflers...but decided against messing with it. The OEM exhaust note sounds good.

Also, I did the NAV bypass and added an aftermarket subwoofer. MUCH better overall sound now! The NAV bypass allows you to change settings while the car is moving. It was a pain to not search music on the HD or make changes to a destination while moving...Search the forums for the specifics. I did a write-up on the bypass and lots of helpful info on the sub.

Here are the links:

http://www.advancespeedshop.com/tanabe- ... -7521.html

http://www.importpartspro.com/r2cpepopekit.html

[C-grunt]

I dont have NAV in the car but do have the Bose system. Its definitely everything I need for a stereo. I do love the OEM exhaust note, definitely one of the all time best, but I wish it were a little louder.

[RED_DET]

I have sold a ton of the R2C intakes and also run one myself.

Here is the best deal you are going to find right now, period.

The upgraded black nickel finish.

http://tunerzstore.com/index.php?p=1_191

[C-grunt]

Any idea what kind of power gains that intake system gives?

[RED_DET]

a g37 member from another board ran a dyno comparison and it made 15-17hp over stock and more than the stillen gen 3.

[C-grunt]

Wow thats a bit more than I expected. Would this require a tune?

Any idea on power gains from a HFC? Which of the two do you guys think would be a better first mod?

[tollboothwilley]

Intake + HFC will probably net you about25-30 whp for the G37.

HFC generally get 12-15WHP.

Intake will be easier to install and RED_DET is the man. The HFC cost about the same but installation is harder so if you don't do work yourself it will cost more.

[RED_DET]

The two together would make decent power but a tune would be recommended to maximize power. Hfc bit more in price for probably same gain.

[C-grunt]

Im not to worried about the labor for an intake or exhaust. My last car was a 06 WRX and I switched exhausts on that thing a few times. The lack of a down pipe off the turbo should make the HFC install much easier than Im used to.

So going without a tune isnt bad for the car? I will probably get it tuned some time but Im just worried about not blowing up the engine.

[RED_DET]

Yes going without a tune could be detrimental. I would do one or the other first then see where you want to go from there.

[luisg37s]

You talk about the R2C intake. Is that the best one that is recommended. Anybody have any problems with it? Any other suggestions on brand?

[tollboothwilley]

R2C and Stillen are the best options. If it were me, I'd get the R2C. The Stillen is good - but I think the R2C is better.