MagnaFlow SUBARU IMPREZA WRX Stainless Cat-Back System PERFORMANCE EXHAUST - Manual

Step 1: Begin by unbolting the mufflers at the 2-bolt
flanges. Disengage the welded hangers from the
rubber insulators and remove the mufflers. Do not
discard the OEM fasteners or damage the OEM
rubber insulators as they will be reused to mount the
new system. Remove the Y-pipe by unbolting it at the
catalytic converter and by disengaging the rubber
insulator.
Step 2: Begin installing the new system by bolting the
new inlet pipe assembly to the converter using the
OEM fasteners. Leave all clamps and fasteners loose
for final adjustment of the complete system. Connect
the Y-pipe assembly to the inlet pipe using a supplied
2.5" band clamp, and by fitting the welded hanger
into the rubber insulator. Finally, install the muffler
assemblies in a similar 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). 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
15471
2011-2015 Subaru Impreza WRX Sedan 2.5L Touring Series
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
12/29/10
Rev: 000
INLET PIPE
ASSY
Y-PIPE
ASSY