MagnaFlow GMC DIESEL DURAMAX, 4in. SYSTEM AL Custom Build Pipe Kit Diesel PERF. EXHAUST - Manual

Step 1: (Carefully read all instructions before
installation) To aid in removal of the OEM exhaust
system, you may need to cut the tailpipe from the
muffler. Once this is done, remove the tailpipe from
the OEM rubber insulators. Do not damage the OEM
rubber insulators, as they will be re-used to mount
your new system. Remove the remaining components
of the exhaust system leading up to the turbocharger.
Take care not to damage the OEM V-band clamp that
fastens the downpipe to the turbo, as it will be reused
to mount the new downpipe.
Step 2: Using the diagram to the left, determine which
pipes are needed based on cab/bed layout of your
truck. Trimming of the pipes will be required for
models with an X-Tra cab and/or short bed. Once the
pipes are trimmed, if required, you can begin
installation. Install the new downpipe by fitting the
welded hanger into the OEM rubber insulator, and by
fastening the inlet to the turbo using the OEM clamp.
Leave all clamps and fasteners loose for final
adjustment of the complete system. Working rearward
install the front extension pipe by mounting it in the
OEM rubber insulator and by fastening it to the
downpipe using a supplied clamp. Install the
remainder of the new system in a similar fashion using
the supplied clamps and hanger clamps. There are
supplied hanger clamps for the shortbed and long bed
truck configurations. The rear hanger clamp is to be
used to fasten the mid/rear pipe to the tailpipe
extension as shown. Adjust the system for overall
aesthetics and clearance of the frame & bodywork.
(MAGNAFLOW recommends at least 1/2" of
clearance between the exhaust tip and any body panels
to avoid heat related bodywork damage or fire.)
Step 3: Once a final position has been chosen for the
new system, evenly tighten all fasteners from front to
rear. Inspect all fasteners after 25-50 miles of
operation, and re-tighten if necessary.
Mufflers, Converters,
Systems and Tips
INSTALLATION INSTRUCTIONS
18980
2001-2007 Chevrolet/GMC Diesel 6.6L
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 11/14/12
TAILPIPE
TAILPIPE
EXTENSION
MID/REAR PIPE
MID-PIPE
FRONT EXTENSION PIPE
DOWNPIPE
4" CLAMP
4" HANGER CLAMP
LONG BED
FLOATING
HANGER CLAMP
SHORT BED
FLOATING
HANGER CLAMP
4" CLAMP
4" CLAMP
4" CLAMP