MagnaFlow BMW 335I XDrive Stainless Cat-Back System PERFORMANCE EXHAUST - Manual

Step 1:( Carefully read all instructions before
installation) Start the removal process of the OEM
exhaust system. First remove the skid plate and
cross braces to facilitate extraction. Next unbolt the
front pipe flanges behind the catalytic converter.
Working front to rear carefully remove all hangers
from the rubber isolators and remove the system.
Step 2: Begin the installation of your new
MAGNAFLOW Performance Exhaust System by first
laying out all components to check content and
orientation. Start by attaching the D/S and P/S inlet
pipes to the outlet of the catalytic converter using the
OEM fasteners. Next slip the X-Pipe Assembly over
the new Inlet Pipes. Loosely secure using the
supplied clamps and OEM rubber isolators. Mount
both Muffler Assemblies to the X-Pipe Assembly.
Locate hangers into OEM rubber isolators and
loosely secure using the supplied clamps. Finally,
loosely attach the Muffler Assemblies to each other
using the supplied M12 bolt/nut
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 65ft-lbs). U-bolt clamps should be
tightened to approximately 30-35ft-lbs. Replace Skid
plate and cross braces. inspect all fasteners after
25-50 miles of operation and retighten if necessary.
Mufflers, Converters,
Systems and Tips
INSTALLATION INSTRUCTIONS
15529
2011 BMW 335 3.0T Coupe
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
Sept 9, 2010
Rev: 000
P/S INLET PIPE
ASSEMBLY
D/S INLET PIPE
ASSEMBLY
X-PIPE
ASSEMBLY
P/S MUFFLER
ASSEMBLY
D/S MUFFLER
ASSEMBLY
4X 2.50"
CLAMPS
M12 BOLT/NUT