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996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

44.5mm vs. 41.5mm Headers

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Old Nov 15, 2006 | 02:36 PM
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44.5mm vs. 41.5mm Headers
What would be the DISADVANTAGE of running large 44.5mm headers on a Non-GT700 (or higher) GT2 instead of the smaller 41.5mm headers?

Suppose a GT2 with GT600/640'ish Mods.
 
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Old Nov 16, 2006 | 09:36 PM
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Nobody? Bump...
 
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Old Nov 16, 2006 | 11:24 PM
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From what I've read you sacrifice torque below 5500 RPM with the 1 3/4" primaries. There would also be more lag. Over 700 HP the larger tubes might give a little more high RPM torque.
 
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Old Nov 17, 2006 | 12:01 AM
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You would lose low end torque and your car would be slower.
 
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