The only intake I'd consider is OEM X51. Slick CF unit, double intake, paper filters. Had an oiled filter on my M3 - fouled the MAF.

 

PM'd you back.

Thanks,

Andre

 

I see no advantage of going with an oiled filter. It can however screw up your MAF as mentioned earlier and if something happens to the motor I am sure Porsche would point to the intake. I have heard of damage happening to motors using oiled filter elements. I would say try out the intake plenum but have heard mixed opinions on it...

 

The Carrera 997 COMES with a cold air intake from the factory. That other stuff is a complete waste of money. There's entire cottage industry out there that prey on exotic car buyers who feel obligated to "upgrade" their cars. Most of the stuff you take off your cars to put that stuff on is far superior to the junk you replace it with. It was also designed and integrated to work together. But no, you have to assume that Porsche left a bunch of low hanging fruit out there for some company to exploit. Ha.

Here's what you REALLY should do to get a boost in horsepower from your Porsche,--and you don't have to change a thing in the car. Gasoline.

Mix in a higher octane fuel into your premium (especially important in California) and you WILL absolutely feel the difference. It will restore a lot of detuned HP to the car because of the variocam which retards the engine's capability to match the octane shortcomings.

dan

 

Just to expand on Dan's comments for those of you who don't live in California... while California is a wonderful place to live, we do have our share of headaches. And I'm not talking fires and earthquakes. I'm talking the man made problems. For example, we have to contend with CARB (state beaurocracy) which enforces the type of gasoline that we are limited to purchasing.

California has multiple blends of gas at different times of year (summer gas, for example, is blended differently than winter gas and can only be sold at certain times of the year). Part of the CARB requirement is that California premium unleaded is limited to 91 octane gas. So whereas you can purchase 93 octane in other parts of the country, we in CA have no such option. You can buy "racing gas" with much higher octane, but it is difficult to find and really expensive (it was more than $10/gallon the last time I drove past the local 76 that sells it vs. $3.5.gallon for 91 octane).

 

I have the Evo intake system and have been satisfied with it. If I were doing it over at this point, I would go with the X-51 parts and any custom work needed to make it happen. The incremental, if any, gains from changing the Evo to X-51 don't make sense for me now. Power gains from intakes will only be incremental, in any case.

The IPD(sold by RSS) plenum seemed to make a significant difference in the midrange power & torque. I would certainly do that over. The stock Porsche plenum looks like a Home Depot plastic plumbing part next to the finely finished IPD component.

 

I have one on order.

 

Here's a detailed thread on rennlist.com regarding aftermarket intakes in general: http://forums.rennlist.com/rennforum...d.php?t=373850

It's a pretty well reasoned thread and speaks for itself.

 

I remember reading that thread, very informative

 

What intake is this??? Looks great! IS it a dual filter?

 

X-51 Porsche Intake and yes it is dual Air Filter. Requires a hole being cut in the lid and an adapter at the Throttle Body.

 

Neil, What hose did you use between the throttle body and the X-51 air box? the X-51 throttle body is 5mm larger.

 

The best my GT3 felt was on the way home from a dealer with the german gas from the factory still in the tank, the exhaust even smelled differently. Does anyone know what octane rating gas Porsche fills the car up at the factory? What other differences are there, do they not use ethanol over there like we do here in the states?

 

I am using a 3.25 ID 4 Ply Turbo Coupler from BoostController.com. If fits inside the x-51 Hose perfectly and should fit the TB equally well but I haven't got that far yet. The dealer uses a Hoover Vacum Belt.

Just finished cutting the hole which is a PITA.

 

Cool, THX