MagnaFlow AUDI S4 Stainless Cat-Back System PERFORMANCE EXHAUST - Manual

Step 1:(Carefully read all instructions before
installation) Remove the OEM system from the
vehicle by first loosening the clamps attaching the
inlet pipes to the catalytic converters. Working front
to rear remove all mounting hardware and detach
hangers from rubber insulators. Be sure to retain all
mounting hardware and rubber as it will be needed to
install your new MAGNAFLOW performance exhaust
system.
Step 2: Begin installation of your new exhaust
system by first slipping the inlet pipes of the X-Pipe
assembly over the catalytic converter outlets, secure
using the OEM clamps. Slip the inlet pipes of both
Mid Muffler assemblies over the outlets of the X-Pipe
assembly, secure using the supplied clamps. Mount
the Tail Pipe Muffler assemblies by attaching the inlet
pipes over the outlet pipes of the Mid Muffler
assemblies and fasten using the supplied clamps.
Locate the hangers into the OEM rubber insulators.
Bolt the supplied hanger bracket to both Mid Muffler
assemblies using the supplied nuts and bolts.
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 3: 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. Inspect all
fasteners after 25-50 miles of operation and retighten
if necessary.
Mufflers, Converters,
Systems and Tips
INSTALLATION INSTRUCTIONS
16586
2004 - 2005 Audi A4/S4 / 4.2L DSR
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
Dec 30, 2009
Rev: 000
X-Pipe Sub Assy.
Mid Muffler Assy. D/S
Mid Muffler Assy. P/S
T/P Muffler Assy. D/S T/P Muffler Assy. P/S
4X 2.50" Clamps