Pypes Performance Exhaust SMB13 - Manual

SMB10/ SMB13
Stainless steel header/cross-member back exhaust system for
1966-74 Mopar B-bodies
SMB10: 2-1/2” w/ x-pipe w/ 18” mufflers
SMB13: 3” x/ x-pipe (coming soon)
1. Begin by placing the vehicle on a lift or four jack stands at maximum height
to aid in an easier installation. To help ease the installation, pre-fit all the components
into a complete system on your garage floor, using the diagram provided.
2. Remove the existing exhaust system from the headers, exhaust manifolds
back or the catalytic converter. You can also remove any hanger mounted to the frame
as your new kit includes new hangers.
3. Now, install your new components. You will be starting from the back of the
car and working your way forward. Begin by installing the new tailpipes. Temporarily
hang the tails over the rear axle. These tailpipes are designed to mount in the factory
rubber tail pipe hanger. If they are not present you can utilize the universal rubber strap
style hangers provided. Slide the mufflers onto the tailpipes placing a support under
them. You will be clamping a hanger to the back of the muffler neck and attaching it to
the under body of the car. In some applications, your factory hangers may be used.
4. Slide the 18 inch mufflers on to the tailpipes. The inlet should be closest to
the drive shaft and the outlet should be towards the rockers of the car. The clamp
attached to the hanger at the backside of the muffler will be the only connection clamp
used. The muffler inlets should be angled in towards the driveshaft for connection to
the rear legs of the x-pipe.
5. Next, install the x-pipe. This is where trimming of the front legs may be
required for the optimum fit. Install the fixed “X” rear legs into the mufflers first. Your
center “X” should land approx 8-12 inches behind the tail shaft of your transmission
and centered under the driveshaft. Also, the center plate in the “X” has an arrow stamp
which must point forward. Slide the front legs into the x-pipe. They should end some-
where close to the humps in your transmission cross-member. These may need to be
trimmed to fit the width of your headers or optional down-pipes. Be extra careful when
measuring and cutting. A helpful tip: Line up the front legs under the center “X” to mark
your cut lines making sure to line them up with you headers or down pipes. Finish the
system by connecting the front legs of the x-pipe to the headers (collector reducers)
utilizing the two 1ft connection pipes. Trimming the length may be required. If down
pipes are used, make sure they end close to the rear side of the transmission cross
member. If they are too long they must be trimmed. Some header applications require
custom collectors due to the header not ending square and parallel in the car. For
proper system fit, your collectors must run parallel with your rocker panels.
6. Finish the system by making all your final adjustments to position the x-pipe,
mufflers and tailpipes. Now tighten all the clamps (Warning: tightened clamps will
leave marks in the tubing, making removal or adjustments extremely difficult) or for the
best fit weld all the slip joints. Stainless steel can be welded with your standard mig
welder, and is highly recommended when possible.
Now it’s time to fire up that muscle car and enjoy your
new Pypes Performance Exhaust.
Pypes Performance Exhaust
2880 Bergey Road Unit O Hatfield, PA 19440
800-421-3890 (voice) 215-712-9968 (fax)
www.pypesexhaust.com
(A) Manifold (optional)
(B) Header (optional)
(C) Downpipe
(optional)
(D) Collector Reducer
(optional)
(E) Collector
Extensions
(F) X-pipe Assembly
(G) Mufflers
(H) Tailpipes
(A)
(B)
(C)
(D)
(E)
(F)
(G)
(H)
(G)
(H)
Thanks again for purchasing your new stainless steel Pypes Performance
Exhaust header/cross-member back system. Please be sure to confirm all
the components in the kit were received in your shipment before beginning
installation. These kits will include (1) X-pipe kit, (2) Mufflers (if purchased),
(2) tailpipes, (2) collector extensions, (2) muffler hangers, (2) tailpipe hang-
ers, (8) clamps, and (1) bonus pack. If you purchased a kit including 409
stainless mufflers you will see the following notation after the system num-
ber: (S) Street Pro, (R) Race Pro, and (V) Violator. If you find any compo-
nent missing, please contact our office at 800-421-3890 for replacement. In-
stallation of this kit will require some simple hand tools; box wrenches, deep
sockets w/ ratchet, extension, a saws-all and some penetrating lubricant. For
a quicker and tighter installation, air tools are recommended. Fully welding
the system is always recommended when possible. Technical assistance is
available both online at www.pypesexhaust.com or 800-421-3890. Also our
online Installation Gallery is a great assistant during your installation,
www.pypesexhaust.com/pictures.html.