Owners manual

08/18/2017
INS5284
CORSA Performance · 140 Blaze Industrial Pkwy · Berea, OH 44017 · P: [phone] · F: [phone]
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E - M a i l : s a l e s @ c o r s a p e r f o r m a n c e . c o m · w w w . c o r s a p e r f o r m a n c e . c o m
Exhaust System Installation
Valve Back Exhaust System
2014+ C7 Corvette (2017 GrandSport Auto)
PN’s 14762, 14763, 14764, 14765
Polished & Black Quad 4.5” Pro or Poly Tips
6. CAREFULLY Remove the two reflectors on each side to enable access to the four outer mounting bolts for the
rear fascia. Each reflector is snapped in place using three tabs, which can be pushed out from inside the fascia.
(Fig I)
7. Remove the six bolts that secure the top of the lower fascia (2 on each side and 2 in the center) using a 10mm
socket and 3/8” ratchet. (Fig. J & K)
8. CAREFULLY unsnap each tab securing the top corner of the rear fascia to remove it from the vehicle. Set the
rear fascia aside in a safe location. (Fig. L, M, & N)
9. Remove the two bolts holding the stock mufflers together using a 10mm socket and 3/8” ratchet. (Fig. O)
10. Beginning on the passenger side, remove the two bolts securing the rear muffler grommet with a 13mm socket
and 3/8” ratchet. Set aside these bolts to be reused during the installation process. (Fig. P)
When connecting to a factory NPP exhaust; continue to step 11. If you’re connecting to the factory base
exhaust, skip to step 12.
11. Disconnect the rear (non-AFM) valve wire. (Fig. Q)
12. Loosen the clamp bolt at the axle pipe inlet using a 15mm socket and a 3/8” ratchet. This will allow the factory
exhaust section to droop. (Fig. R)
13. Disconnect the AFM valve wire (front valve on NPP cars), then carefully pivot the stock exhaust section down
and rearwards to free it from the vehicle. (Fig. S & T)
NOTE FOR AUTOMATIC CARS ONLY: The shift linkage on the driver side has to be moved to create enough
clearance to remove the stock exhaust. This can be done by putting the car in neutral while the driver side is
being removed. (Fig. U)
14. Repeat steps 10-13 for the driver side stock exhaust section.
15. Remove the hanger grommet from each rear muffler using grommet pullers or similar device. Set aside both
grommets to be reused during the installation process. (Fig. V)
Note: The use of a soap and water solution may make working with rubber grommets easier.
16. Use the supplied driver and passenger side cutting templates to mark the cut line on each of the stock muffler
sections. Double check that the proper tool is being used on each side, as the AFM valve on the passenger side
is closer to the muffler than the one on the driver side. The tools are to be positioned against the downstream
weld edge of the AFM valves, between each of the valves and the mufflers. Mark along the opposite side of the
tool to create a cut line. (Fig. W & X)
REMOVAL CONTINUES ON NEXT PAGE; REMOVAL PICTURES ON PAGES 5-7