MagnaFlow BMW 1 SERIES M Stainless Cat-Back System PERFORMANCE EXHAUST - Manual

Step 1: (Carefully read all instructions
before installation)
Begin removal of the OEM
exhaust system by unbolting the two hole flange
from the factory resonator located under the middle
of the vehicle and remove the hangers from the
OEM isolators at the front and rear of the system. Be
careful not to damage the OEM rubber isolators and
save the OEM fasteners as they will be re-used to
mount the new system.
Step 2 : Using the OEM fasteners install the new
system by bolting up the Inlet Pipe Assembly to the
OEM Resonator and by fitting the welded hanger into
the OEM rubber isolator. Use the supplied 3.00"
clamp to loosely fasten the Muffler Assembly to the
Inlet Pipe and fit the welded hangers into the OEM
rubber isolators.
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). Inspect all fasteners
after 25-50 miles of operation and retighten if
necessary.
Mufflers, Converters,
Systems and Tips
INSTALLATION INSTRUCTIONS
15071
2011 BMW 1 SERIES M 3.0L
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 07/20/11
3.00" CLAMP
INLET PIPE
ASSY
MUFFLER
ASSY