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PEI330Ci · 10-20-2010, 12:51 PM

It's in the cylinder head.

S54 Intake port = 275 CFM

M54 Intake port = 200 CFM

The rest of the stuff listed above is small potatoes. Want proof? I strapped an ITB intake onto a built M54 and lost 30rwtq and gained peak 5rwhp. Yuck!

10-20-2010, 12:51 PM	#11
PEI330Ci 58mm of Bliss Join Date: Jul 2003 Location: PEI,Canada Posts: 3,580 My Ride: 330i, 330Ci View My Garage	It's in the cylinder head. S54 Intake port = 275 CFM M54 Intake port = 200 CFM The rest of the stuff listed above is small potatoes. Want proof? I strapped an ITB intake onto a built M54 and lost 30rwtq and gained peak 5rwhp. Yuck!