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Bigsmoothlee · 01-16-2014, 02:55 PM

From what I understand the IPD plenum gives a lump of torque much earlier in the powerband due to its shape... I think 83mm is overkill for your typical boxster, with the 75mm throttle being just right.

As for the original poster, with a 3.2 you'd probably be better off installing a 996 intake manifold to go along with the cayman S airbox, since thats where the power is really restricted. There was a thread on Rennlist where a 996 owner installed a 3.2 in place of his blown 3.4 and didnt see a huge decrease in power...mostly because he used the 996 intake and exhaust.

01-16-2014, 02:55 PM	#13
Bigsmoothlee Registered User Join Date: May 2011 Location: weehawken nj Posts: 240	From what I understand the IPD plenum gives a lump of torque much earlier in the powerband due to its shape... I think 83mm is overkill for your typical boxster, with the 75mm throttle being just right. As for the original poster, with a 3.2 you'd probably be better off installing a 996 intake manifold to go along with the cayman S airbox, since thats where the power is really restricted. There was a thread on Rennlist where a 996 owner installed a 3.2 in place of his blown 3.4 and didnt see a huge decrease in power...mostly because he used the 996 intake and exhaust. Last edited by Bigsmoothlee; 01-16-2014 at 02:58 PM.