MagnaFlow CHEVROLET TRUCK SUBURBAN 2500 Stainless Cat-Back System PERFORMANCE EXHAUST - Manual

Step 1: (Carefully read all instructions before
installation) To remove the OEM exhaust system, you
will first need to cut the pipe behind the muffler
before it goes over the axle. Next, remove the ball
clamp securing the Inlet Pipe Assy to the catalytic
converter. You can now disengage the welded
hangers from the rubber insulators and remove the
tailpipe. Unbolt the muffler inlet from the catalytic
converter at the clamp junction. Do not damage or
discard the OEM fasteners or rubber insulators, as
they will be reused to mount the new system.
Disengage the muffler hangers and remove it from the
vehicle.
Step 2: Install the new Inlet Pipe Assembly at the ball
flare using the OEM fastener. Leave all clamps and
fasteners loose for final adjustment of the complete
system. Install the Muffler, Resonator and Tailpipe
Assemblies in a similar fashion using the supplied
3.50" clamps and by fitting the welded hangers into
the OEM rubber insulators.
Step 3: With all components mounted loosely, adjust
the system for overall aesthetics and clearance of
frame & bodywork. (MAGNAFLOW recommends at
least 1/2" of clearance between the exhaust system
and any body panels to prevent heat-related body
damage or fire.)
Step 4: Once a final position has been chosen for the
new system, evenly tighten all fasteners from front to
rear. The supplied band clamps must be VERY tight
to properly align the pipes and prevent leaks
(Approximately 40ft-lbs). U-bolt clamps should be
tightened to approximately 30-35ft-lbs. Inspect all
fasteners after 25-50 miles of operation and retighten
if necessary.
Mufflers, Converters,
Systems and Tips
INSTALLATION INSTRUCTIONS
15171
2011-2012 Chevrolet Suburban 6.0L
Warning: When working on, under, or around
any vehicle exercise caution. Please allow the
vehicle's exhaust system to cool before removal,
as exhaust system temperatures may cause
severe burns. If working without a lift, always
consult vehicle manual for correct lifting
specifications. Always wear safety glasses and
ensure a safe work area. Serious injury or death
could occur if safety measures are not followed.
** Magnaflow Performance Exhaust recommends professional
installation on all their products
Magnaflow Performance Exhaust - 22961 Arroyo Vista Rancho Santa Margarita, CA 92688
Main #: 1-800-990-0905 Technical Support: 1-800-959-9226 ext 4500
01/30/13
Rev: 000
Inlet Pipe
Assy
Muffler
Tail Pipe
Assy
Resontor
Assy
[3] 3.50"
Clamp