MagnaFlow GMC TRUCK YUKON XL 1500 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. You can then
disengage the welded hangers from the rubber
insulators and remove the tailpipe. Unbolt the
muffler inlet from the catalytic converter at the
"V"-band clamp. 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 at the female flare
using the OEM "V"-band clamp, and by fitting the
welded hanger into the rubber insulator. leave all
clamps and fasteners loose for final adjustment of
the complete system. Install the muffler, extension
pipe and tailpipe using the supplied 3" 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
15217
2013-2014 Chevrolet Suburban 5.3L
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
Nov 21, 2013
Rev: 001
INLET PIPE
3.00" CLAMP
MUFFLER
3.00" CLAMP
EXTENSION PIPE
3.00" CLAMP
TAILPIPE