Lingenfelter L650150309 Lingenfelter C6 ZR1 Lingenfelter Air Intake 2009-2012 v2.2 - Manual (Page 11)

Page 10.
32. Make sure the air inlet tube is aligned
properly and then, using a 7 mm nut driver or
socket, tighten the remaining hose clamp that
secures the air inlet tube to the hump hose.
33. Remove the MAF sensor from the stock
air intake assembly using a T-20 Torx socket or
tool.
34. Install the MAF sensor into the air intake
tube already installed on the vehicle. The MAF
sensor mounting holes will only line up with
the holes in the flange if it is installed facing
the correct direction. The arrow on the sensor
flange indicates the direction of the air flow.
35. Using a 3 mm Allen wrench or socket,
secure the MAF sensor using the supplied
4x0.7x12 mm (LPE part #47503) socket head
cap screws.