409S
®
Stainless Steel
11/15/16
Removal:
1)
Raise the vehicle up on a hoist or rack to working height. If you do not have access to a hoist
or rack raise the vehicle and support securely with jack stands.
2)
Using a 12mm socket, unbolt the tailpipe connection where it exits the muffler. Separate the
wire hanger on the tailpipe from the rubber mount on the vehicle. Remove the tailpipe and set aside.
3)
Support the muffler with a stand, then using a 14mm socket unbolt the 4 bolts at the two front
flanged connections. Separate the wire hangers in front and rear of the muffler from the rubber
mounts on the vehicle. Remove the muffler inlet pipe assembly and set aside. Save the 4 factory
bolts, they will be reused in Installation step 1.
Installation:
1)
Place the inlet pipes
#86216S
and
#86217S
into position, and fasten the flanged connections
together using the bolts removed in step 3 above. Next, place the supplied left inlet pipe clamp
hanger
#478HA
and the right inlet pipe clamp hanger
#477HA
onto the inlet pipes and into the factory
rubber mounts on the vehicle.
2)
Place two supplied 2 ½
” clamps
over the inlets of the muffler, and then slip the muffler onto the
back of the inlet pipes. Use a stand to support the muffler. Tighten clamps enough to hold in place,
but still allow for adjustment.
3)
Install the left rear frame hanger
#479HA
across from the center of the spare tire. Locate a
square cavity on the left rear frame rail. Look up into this cavity and locate the large hole at the top of
the frame. Install the
#HA566
backing plate on the top side of the frame, then place the
#479HA
hanger assembly up into the cavity using the washers and nut provided. Tighten the hanger firmly
using a 9/16” socket or wrench, slide the supplied rubber hanger
#HA168
onto the end of the
#479HA
hanger rod. Once the hanger assembly is bolted into place correctly it will face the rear of the vehicle
(see photo at the top of page 2).
4)
Place two of the supplied 3
” clamps
over the outlets of the muffler; then place right tailpipe
#26449S
into position over the rear axle, and slide into the right muffler outlet. Connect the hanger
that is welded to the rear of the pipe into the factory rubber hanger.
Pg 1 of 4
Technical Support (707) 544-4761
Installation Instructions for:
SYSTEM #817692
2009*-2017 TOYOTA TUNDRA TRUCKS
*BUILT AFTER 08/2008
4.6L & 5.7L V-8 I-FORCE ENGINES
*ALL EXCEPT STANDARD CAB/SHORT BED & DOUBLE
CAB/LONG BED*
