Hello everyone,

Right now I have the Fabspeed cold air setup, but I am thinking about upgrading to a complete system. Which product provides the best performance. The EVO V-Flow or the New Fabspeed 997 Maxflo Competition Air Intake. Thank you all for your input.

 

I'm interested in this comparison as well. Does anyone have first hand experience on the Werks1 Airbox?

http://www.championmotorsport.com/pe...s1_airbox.html

Lastly what about the RSS 997 plenum . . . the one shown here:?:?

http://sharkwerks.com/products.php?pid=134

I think the Werks1 Airbox preclude using this plenum, but I'm not sure.

And, as Porsche05 said . . . thanks in advance for your thoughts.

 

The Werks1 airbox is a beautiful piece of carbon fiber art. It is also on the wrong side of $3K. I have not seen any dyno test results posted for it. If they were ever done, no one is talking. It probably provides some additional power, but it can't be much.

Another option is the factory X-51 carbon fiber airbox assembly. Around $1K. The deck lid sheet metal has to be cut on the inside, but instructions are available on Renntech.org. Again, actual power gains unknown, I haven't seen any posted results for this either.

The Evo part is about $600. They post increases that seem a little high. The IPD plenum is about $1K and provides mid & low rpm range improvements, which also seem to be claimed a little high.

These topics have been absolutely beaten to death on the 997 forums for many years. Some comparative, independent dyno testing on a single car, same day, would be useful, but its been several years and nobody has done it.

 

+1!!! Darn right it is, esp the new one for the 997.2. Just a stunning piece of gear... Esp in a black Porsche. Drop dead stunning piece of work.

 

Looking at the designs, Werks1 intake is the best in the market. It has 2 air inlets and the pipe design is pretty obvious and straight.

They do not dyno the airbox because it is pretty hard to get real results on a dyno. On the road, there is a lot of air going into the airbox with more speed. On a dyno it is quite hard to get those numbers. I think the test should be done on a track rather than a dyno.

 

Isn't the Werk-1 2 air inlet unit for the 997.2 (2009-10) deck lid? The Evo unit has 1 opening that is for the 997.1 (2005-2008) deck lid.

Check what they are running in the Grand-Am series....either a stock air box which by the way is a cold air box with plenty of volume or a Evo unit...all wrapped in gold heat foil.

 

Thanks for the advice. I didn't know anything about the X51 airbox . . . . I think I'm gonna look into that.

I do love the Werks airbox . . . just hard to justify that much money for a car that won't be tracked, won't be in car shows, and it doesn't offer substantial power gains (not that any airbox provides substantial power gains).

Thanks again!

 

Since the car is not tracked or in shows I'd just leave the stock air box...there is not 1 thing wrong with the stock box...in other words the stock air box is not a weak link to more power. Check out what the Grand Am cars run, see what a well known company like Ruf runs....stock air boxes.

 

Makes me think that it might be worth looking into a cosmetic improvement to the stock airbox. Well, maybe worth it for someone else to look into it!
Imagine a core swap with someone who is putting an aluminum finish on, like Jet Hot for plastic. Or a very thin aluminum cover/sleeve that you could install yourself, with a remove/replace of the stock unit. Or - why can't one of the aftermarket body parts guys make a CF version of the stock unit. No special engineering involved, an no dyno arguments, just cosmetic. If they can make/sell a bumper for under $1000, why can't they make airbox parts? Add a hi-performance filter and you're good to go.
I'm just brainstorming over here - back to work...

 

They offer systems for both Gen1 and Gen2.

I know they usually run the Evo airbox in Grand Am series. I would love to know the real world performance of each airbox.

 

+1, I have the Evoms unit, and although it adds a little more depth in the sound of the car, it doesn't add any extra power. Adding it will lighten your wallet and make your car lighter, so you will be a little quicker in the end because of it

 

Hi Jack,
Where did you get your lift stands?

Nelson

 

I just love the sound of the EVOMS one and for the price it does actually make some power. If you want a fancy engine bay then obviously the Werks1 can't be beat.

 

Those are at my mechanic. They are not mine, but I could ask him...

 

I did before and after dyno on same day and then dynoed again a week later.

997.1 s cab stock
I added pse, evo intake, evo/suncoast headers and GIAC flash

The dyno showed EXACTLY ZERO HP AND TQ GAINS

I wish I had copies to post but looks like I threw them away. Do a search on my name in this forum probably mid-late 2005 to see all the numbers

I am keeping my 997.2 S stock, except for the wheels.