The intake control system includes an intake valve that allows {HEAD ~ a variable amount} of air into {TAIL ~ an air cleaner} depending on vehicle speed 
into
The intake control system includes an intake valve that allows { HEAD ~ a variable amount } of air into { TAIL ~ an air cleaner } depending on vehicle speed
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH