8th Generation Honda Civic Forum - View Single Post - 06 si vs 02-05 rsx intake manifold and throttle body..

ever12 · 12-27-2005, 01:46 AM

The Si has a cast aluminum intake manifold with a huge 70mm intake duct. It helps out in high rpm power and is mostly the reason the Si sounds so good from the factory. Swapping the intake manifold need not apply. Just go with a Hondata K-series intake manifold gasket to stop heatsoat and your good to go.

12-27-2005, 01:46 AM	#3 (permalink)
ever12 Senior Member Join Date: Jul 2005 Posts: 419	The Si has a cast aluminum intake manifold with a huge 70mm intake duct. It helps out in high rpm power and is mostly the reason the Si sounds so good from the factory. Swapping the intake manifold need not apply. Just go with a Hondata K-series intake manifold gasket to stop heatsoat and your good to go.