Pypes Performance Exhaust SMA13 - Manual

SMA10/ SMA13
Stainless Steel header/cross-member back exhaust system for
1967-73 Mopar A-bodies
SMA10: 2-1/2” w/ x-pipe
SMA13: 3” w/ 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 or exhaust manifolds back.
You can also remove any hanger mounted to the frame as your new kit includes factory repro-
duction hangers.
3. Now, install your new components. Begin by test installing your new tailpipes. Since
this system uses universal style hangers, you will need to find an appropriate location to mount
them. We have also included spoon style tailpipe hangers which can be used close to the
bumper if the factory rubber hangers are still present. Also, if you are utilizing the correct tips,
the built in hanger will act as your tailpipe hanger. The muffler hangers will get mounted to the
rear seat pans just in front of the rear. If you so choose, custom hangers may be fabricated, let
your creativity shine.
4. Now, install the mufflers. 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.
5. Next, install the x-pipe. This is where trimming of the tubing may be required for the
optimum fit. Install the fixed “X” with rear legs into the mufflers first. You are aiming to have
the center “X” land approx 8-12 inches behind the tail shaft of your transmission and centered
under the driveshaft. Also, the center plate on the “X” has an arrow stamp which must point
forward. Trim the rear legs as needed to put your “X” in the proper location. Quick tip: If the
rear suspension is unloaded, you can push the center “X” up until it just about touches the drive
shaft as it will never hit once the suspension is loaded. Slide the front legs into the x-pipe. They
should end somewhere close to the humps in your transmission cross-member. On some
applications, the front “X” legs may not be centered in the humps but line up to your headers or
down-pipes. This is fine as the system will not hang too low. Be extra careful when measuring
and cutting. A helpful tip: Line up the front legs under the center “X” to mark your cut lines mak-
ing sure to line them up with you headers or down pipes.
6. Finish the system by connecting the front legs of the x-pipe to the headers (collector
reducers) utilizing the two 1ft collector extension pipes. Trimming the length will be required.
Do not connect the x-pipe directly your headers. If down pipes (see down-pipe instructions) 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 to the car. For proper system fit, your collectors must
run parallel with your rocker panels.
7. 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 recommend-
ed 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 spoon
hangers, (8) clamps, and (1) bonus pack. If you purchased a kit includ-
ing mufflers you will see the following notation after the system number:
(S) Street Pro, (R) Race Pro, and (V) Violator. If you find any component
missing, please contact our office at 800-421-3890 for replacement. Instal-
lation 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, visit
www.pypesexhaust.com/pictures.html .