I just purchased a 997.2 GT3 rear wing from a RL member and it only has one air opening. Does anyone know if this is a problem since my 997.2 currently has 2 air openings? I think its a bit odd that only one side of the intake will receive direct air.

Also, I have a fabspeed CAI system that I am planning to install. Does that complicate things?

Below is a pic of the inside of the new wing.

 

Most people who do this conversion use an aftermarket intake (fabspeed, evoms) for the reasons you described above. I wouldn't use the stock airbox with that wing, unless you could cut a hole in the other side to make a second intake.

 

Right and thanks for the response. But the after market intake, like Fabspeed collects air from both sides too.

Still not sure if this is a problem or not.

 

Agreed, but the aftermarket intakes don't seal against the decklid, which should provide better airflow from the 1 hole.

 

Thanks for the replies!

I was just concerned about performance or air flow. Do you think I should cut out a 2nd hole? or will that do more harm that good?

 

Your current airbox is already a CAI. The seal between the decklid and airbox via the accordion gasket is what keeps it CIA. You will be wasting your money on that Fabspeed box. If you don't believe me go check out the CAI threads on Rennlist.

You have a few options:
1) Change your airbox to a 997.2 GT3 airbox.
This will be expensive and might not even fit considering you have a 9A1 engine and the airbox on the 997.2 GT3 is for the M97. It will most likely need to be modified.

2) Buy accordion gaskets (or use the ones form your old wing) and have a shop fabricate and cut holes in your new decklid. Again, you would save money by not purchasing the CAI Fabspeed box but you're cutting an expensive OEM decklid. I would not recommend this.

3) Find or fabricate a single snorkel CAI for the 9A1 engine (I don't know anyone who makes these).

4) Just use your OEM airbox and plug the other end or leave it open (makes little difference). I know people who have simply used the decklid with one opening and used the stock dual intake airbox and it works just fine.

IMO, you should go with #3. Just leave the OEM wing alone and try to find a single snorkel intake or go with #4 and use your OEM airbox.

 

I wouldnt want to go with the Fabspeed system but figured it would be a good option so I found a local seller offering his unit cheap.

I know the Fabspeed CAI wont make much of a diff performance wise but it cant hurt, right?

 

Why are you buying it then?

 

Its silly, but I like the look of the engine bay with it, a bit of a deeper sound. But I really wouldnt get it if the new GT3 wing had two air flow slots, i was thinking this would do a better job pulling in air.

It is half the cost of it new and was only used for 2500 miles.

 

I think you'll be fine with the Fabspeed intake. I use one and find the intake sound quite nice. As you said, it also looks pretty nice though it is only rarely seen by anyone. The cold-air intake problem is not that big of a deal in this case in my opinion. I verified this by taking readings using an ODBLink streaming OBD-II reader. Reading the graphs from test runs in my car shows that the air temperature reported at the MAF is only a few degrees higher than that of the ambient temperature. When sitting still you get more heat since there isn't any external air to stir things up.

Also remember that the Fabspeed intake includes a heat shield that sits between the intakes and the engine. With the deck lid closed the remaining gap isn't that big. On my deck lid (the one from a turbo), the accordion intakes on the deck lid sit almost perfectly above the intakes. You'll still get air from the holes in your deck lid into the partial "chamber" created by the Fabspeed heat shield.

It sounds to me like your new GT3 deck lid and Fabspeed intake is a great plan. I think you'll be thrilled with the look and the sound. There will always be opinions in the other direction from those more concerned with model purity and every single last horsepower... and that can be a valid concern for their cars. But this is your car. Enjoy!

 

Thanks man! I think so too.