MagnaFlow BMW 428I Stainless Cat-Back System PERFORMANCE EXHAUST - Manual

Step 1: (Carefully read all instructions
before installation)
Begin removal of the OEM
exhaust system by removing the underbody brace
and loosening the clamp behind the catalytic
converter located at the front of the vehicle. Remove
the hangers from the OEM insulators and remove
the exhaust system. Be careful not to damage the
OEM rubber insulators as they will be re-used to
mount the new system.
Step 2 :
Using the supplied 2.50" clamp install the
Inlet Pipe Assembly and fit the welded hanger into
the OEM rubber insulator. Use the supplied 3.00"
clamp to fasten the Resonator Assembly to the Inlet
Pipe Assembly. Install the Muffler Assembly in the
same fashion.
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
15161
2012 BMW 328i 2.0L Turbo
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 06/25/12
Inlet Pipe
Assy
Resonator
Assy
Muffler
Assy
[2] 3.00"
Clamps
2.50"
Clamp