Lingenfelter L360091410 Lingenfelter Camaro CTS-V Clutch Return Spring Kit v1.2 - Manual (Page 5)

Page 4.
2009-2013 Cadillac CTS-V Instructions
9. Remove the two (2) screws located on the
right side of the Diagnostic Link Connector (DLC)
OBD-II in the driver footwell under the dash.
10. Remove the screw located on the left side
of the DLC OBD-II in the driver footwell under the
dash.
NOTE: OBD-II port shown with Lingenfelter
optional “do not recalibrate” sticker (part #
L450110095).
8. One side of the spring has a longer loop
on it than the other. Insert the free end of the
spring with the longer loop into the supplied
bracket.