CLAMP
Position slot
90°off of bolt
Position
clamp at
end of
expanded
tube
NOTE: Apply the anti-seize lubricant (supplied) to the threads ONLY of all the clamps
and flange bolts. Failure to follow this procedure can cause nuts to seize on clamps
and potentially destroy threads. After applying anti-seize lubricant, be sure to
thoroughly clean hands as lubricant will tarnish stainless steel. All clamps should
be tightened using a properly calibrated Torque Wrench. Using an air impact gun
will damage the clamp and reduce its ability to effectively seal the joint. It may
also cause the joint to separate thereby causing damage to your exhaust system
and your vehicle.
FIG. K
Installation of CORSA Exhaust System:
1) Locate the CORSA Head Pipe assembly and slide the flange over the studs on the factory
flange. Use the nuts supplied with the CORSA hardware kit and tighten down to 30 Ft-lbs.
Insert the hanger in to the factory grommet. (See Fig’s K, L & M)
Note: Using a soapy solution on the grommet hole will make the job easier.
2) Slide a supplied 3” TORCA clamp over the inlet of the CORSA muffler. Make sure the drain
hole is facing down. Slide the muffler onto the Head Pipe and pre-tighten the clamp.
(See Fig’s N, O & P)
3) Slide a supplied 3” TORCA clamp over the inlet of the CORSA Tailpipe. From the rear of the
vehicle slide the pipe over the axle while holding the rear differential vent hose out of the way.
Insert the pipe over the muffler exit and place the hangers into the factory grommets.
(See Fig’s Q, R, S, T & U)
FIG. L FIG. M FIG. N
FIG. O FIG. P FIG. Q FIG. R
Exhaust System Installation: Cat-Back Exhaust System
2007-08 Avalanche/Suburban/Yukon XL 5.3L GMT900
Single Side Exit
Twin Pro-Series 4.0” Tips / SPORT PN 14246 / TOURING PN 14247
Hydroformed Oval Tip / SPORT PN 14248 / TOURING PN 14249
