996 x51 carbonfiber air box mod - 6SpeedOnline - Porsche Forum and Luxury Car Resource

Jun 6, 2010 | 05:02 PM

996c4s4dailyuse

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996c4s4dailyuse is infamous around these parts

996 x51 carbonfiber air box mod

was wondering if anyone ever had their c4s air box upgraded to a 997-x51 carbon fiber one and if so any details or pics

Jun 7, 2010 | 12:37 PM

davebho

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any pictures of the X51 carbon box?

i have a carbon fetish

Jun 9, 2010 | 10:38 PM

Airrik

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I want to know about this as well.... anyone?

Mar 16, 2022 | 04:51 PM

Captain Cove

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Captain Cove is infamous around these parts

CF air box from 997 X51 into my 2002 996 C4S, engine is from a 2004 X51 40th.
still working at adding the 2nd air intake in the deck lid.

Apr 7, 2022 | 03:11 PM

B8_RDC

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Need a few things like MAF extender etc.

Quote:

Throttle Body: #997.605.116.00

Distributor Pipe: 997.110.416.40

Rubber Sleeve: 997.110.685.40 X2

Hose Clamp: 997.512.694.00 X4

Electric Line (tank vent line extension): 997.607.130.00

Tank Vent Line Support: 997.110.429.40

Support for throttle body: 997.110.423.40

Support: 997.110.433.40

Tank ventline including Valve: 997.110.129.40

Tank Ventline: 997.110.127.40

Looks like above you are missing: X-51 side bellows is # sc997-110-252-00. The bellows left side (looking at the engine) is # sc997-110-250-00 circled in red.

Should fit into the yellow attached sleeves for the deck. Or did you pull your stock left one off and flip it over and stick it to the deck?

Last edited by B8_RDC; Apr 7, 2022 at 03:16 PM.

Apr 7, 2022 | 03:16 PM

Captain Cove

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correct, still working at adding the 2nd air intake in the deck lid.

Apr 7, 2022 | 03:18 PM

B8_RDC

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Ah ok. Maybe that is where 997 vs 996 gets a tad tricky.

Guilty of owning two. Want to sell yours?.....reaches out....

Last edited by B8_RDC; Apr 7, 2022 at 10:18 PM.

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Apr 7, 2022 | 03:21 PM

Captain Cove

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Tricky indeed. Here’s my 996 C4S lid with the extra hole, it’s not a perfect fit but I think it will work.

May 21, 2022 | 06:16 PM

Captain Cove

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Finally got the dual intake deck lid on my 3.6 X51 2002 C4S. There are a few things needing adjustment but it’s all there and working great. It was not easy, let me know if you have questions and want to do something similar.

regards,
F.