cgng30

The airbox is around $700, the deck seal $10, the inlet hose around $50. I'm also going to add the air mass sensor wire extention as soon as it arrives from Germany. The stock airmass sensor is a direct fit but the stock wiring harness could be a little longer. The only item I have not addressed yet is the oil filler tube. I purchased the X-51 oil filler tube because it's shorter than the stock tube which does not fit up perfectly to the new airbox. The only problem is I can't figure out how to unbolt the stock oil filler tube without dropping the engine. If your hands are smaller maybe it could be accomplished but I can barely fit my hands deep enough to feel the oil filler bolts let alone actually get a socket on them. I'll take some pictures when I get a chance.

You can gain access to the screws for the oil filler tube by removing the alternator. No engine R&R required.

Thanks for your input...you have PM. Thanks..

Dave

I've just been looking through the Porsche parts list with a Porsche 'independent' here in the UK. It looks possible that the larger X-51 throttle body may well fit to the standard intake manifold - the gasket part number is the same for both, so the bolt centres must be the same! We are looking at buying an X-51 airbox, hose, throttle body and oil filler tube to see if they can be fitted directly to the standard intake manifold. If they can, it will be the best 'true' cold air kit ever made for the standard car! We will also be doing before and after dyno runs to see if there are any gains.

FWIW, cooler intake temps SHOULD equate to better power due to higher charge density. The X-51 airbox draws entirely cool air from outside the car where the standard airbox also draws hot air through the bottom of the box on the RH side. There's also the possibility of the engine breathing slightly better due to the design of the box and the bigger throttle body. Then again, the standard airbox / throttle body may not be the limiting factors so there may be no gains at all. Will report back in due course.

We are also going to be trying the cams / exhaust / ECU upgrade from 9ff in Germany. This offers (claims?) 395BHP with no airbox mods. Again we'll be checking the validity of the claims. The independent I'm speaking to in the UK has just taken on the franchise for 9ff and will use my car as a test mule.

Interesting times ahead!!

Ian W

Ian

i was looking in to this as well, my carbon fiber box came in last week, mine is 3.6 engine. keep us posted on your progress.

cheer

Ronnie

Hi,

I would guess he had about 18,000 miles. I

would get bilstein PSS9 coil overs if

you want to lower your car. I think

the pasm system dampners need to be balanced

with the coils. Installing the european suspension

with out installing the european dampners would

be the same as just installing the H&R springs. This

is just my thoughts on this issue.

Paul

we are not talking about the just replacing the euro springs, its the whole euro 20 mm sport suspension , which included, new sway bars, new spring , struts, bushings.

I am still deciding on the best way of lowering the car. It looks like it's gonna cost me $1800 for the part and $1300 for the labor if I get the European OEM Suspension Kit, but only $900 if I go with H&R Spring.

My understanding is that they both just lower the car. What would recommend if I want to just lower the car? BTW, does anybody have the part # for European OEM Suspension Kit. My dealership gave following part # but not sure if they are correct.

997-343-041-12 AS VIBR

997-343-531-43-504 COIL SP

997-343-701-07 STABILI

996-343-792-17 RUBBER

997-333-701-15 STABILI

996-333-792-25 STABILI

997-333-051-09 AS VIBR

997-333-531-49-504 COIL SP

997-333-061-01 SUPPORT

Cheers,

Heejin in Seattle

I am planning on doing the same thing. that is the only way to go. where did you get the part numbers from they are not available in the us

ronnie

The airbox is around $700, the deck seal $10, the inlet hose around $50. I'm also going to add the air mass sensor wire extention as soon as it arrives from Germany. The stock airmass sensor is a direct fit but the stock wiring harness could be a little longer. The only item I have not addressed yet is the oil filler tube. I purchased the X-51 oil filler tube because it's shorter than the stock tube which does not fit up perfectly to the new airbox. The only problem is I can't figure out how to unbolt the stock oil filler tube without dropping the engine. If your hands are smaller maybe it could be accomplished but I can barely fit my hands deep enough to feel the oil filler bolts let alone actually get a socket on them. I'll take some pictures when I get a chance.

Hullo fm540i

I have been thinking about this for a while to retrofit the x51 airbox , but I have a c2, I wonder if it will work on a c2. price sounds really fair. I see you are from chicago , so am I. what part of chicago are you from.

Ronnie

I just had the -20mm Sport Chassis installed today at Suncoast Porsche for my 2006 997, wow, what a difference. I'm told I'm one of the first ones in North America to have it. They've assembled a kit with the springs, shocks, rear mounts, anti-sway bars, and other associated hardware. My bars didn't come in yet, they're being delivered from Germany.

The ride is firmer but not in the least bit objectionable. It transitions better and the car doesn't shift around while you are driving quickly. You do notice bumps, cracks in the pavement, and paint lines more with the suspension but it doesn't feel as stiff as a 996 GT3.

When you park it next to a 997 with standard suspension or a 997S with PASM they look like SUVs in comparison, especially in the rear with all that air above the tires. The -20mm lowers the car down to where it should be. We measured with a tape measure and it dropped the car down 1/2" in the front and 3/4" in the rear.

If you have a steep driveway this suspension isn't for you. I used to drive off the side apron of Suncoast Porshce with no problem but now the under-fender lip spoiler thing scrapes. I'm crossing my fingers tomorrow that I can still get it on the trailer fine for towing.

I'm driving it at Sebring this weekend both Saturday and Sunday. I'll let you know my impressions after I get back.

Tom :D

I am planning do it the same thing. I have a base 997 (non s) with 18 inch wheels.

is your car a base 997 non s, and does it have 18 inch wheels with the 20 mm suspension. I noticed on the porsche website in europe when you opt for 20 mm sport suspension it forces you opt out the 18 inch for 19 inches, so I am wondering if you did the same.

thanks

Ronnie