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02-17-2003, 02:52 PM

NA is naturally aspirated and FI is forced induction. Forced induction means you have air being forced into your engine basically, which means you have a supercharger or turbo. Some people consider nitrous to be a form of FI.

02-17-2003, 02:52 PM	#5
JDMB16 Posts: n/a	NA is naturally aspirated and FI is forced induction. Forced induction means you have air being forced into your engine basically, which means you have a supercharger or turbo. Some people consider nitrous to be a form of FI.