x51 headers - 996/997 - 6SpeedOnline - Porsche Forum and Luxury Car Resource

Nov 13, 2008 | 05:37 AM

machina

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x51 headers - 996/997

Whats the difference between the x51 headers with 996. part number and 997. part number?

They look identical.

Nov 13, 2008 | 02:08 PM

Dave07997S

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The 997X51 headers is a log style header like the 996 but the port sizes are different. I don't have the part numbers..

Dave

Nov 13, 2008 | 02:15 PM

machina

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Posts: 296

From: USA

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thanks dave, they look the same from the outside but i know they had different part numbers. Amazing that they seem to work as well as the designs with longer primary tubes and merge collectors.

dr

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