Pypes Performance Exhaust SCC12 - Manual

SCC10 / SCC12
409 Stainless Steel header/cross-member back exhaust system for
1968-80 C3 Corvettes
SCC12: 1968-74 2-1/2” w/ x-pipe, rear exit polished tips
SCC10: 1975-80 2-1/2” w/ x-pipe, rear exit polished tips
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 dia-
gram 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 new hanger brackets for the rear. The existing transmis-
sion exhaust bracket must be utilized.
3. Now it’s time to install your new components. Begin by installing
your new one piece direct fit x-pipe through the holes in you transmission
cross-member. The rear legs must sit level with the center section of the rear.
These should not point towards the ground. The flared and slotted end should
protrude through the front of the cross-member just enough to add clamps.
Your vehicle was manufactured with a rear transmission mount exhaust hanger
which must be utilized. Two u-clamps have been provided in the kit to secure
the front of the x-pipe to the hanger. Also this will clamp the “s” pipes so just
snug until final adjustments. You will need to support the rear section of the
x-pipe while installing the rest of the components. The short “S” bends will
slide into the front of the x-pipe, allowing for the attachment of headers or
down-pipes. Some header applications require custom bent collectors due to
the header not ending square and parallel to the car or do not line up with the
s-pipes which were designed to clear both auto and manual transmissions. For
proper system fit, your collectors must run parallel with your rocker panels.
4. Next, install the two mid-pipes. They are designed to run just under
the leaf springs and curve towards the side of the car. Be sure to install a band
clamp on to the expanded portion before installing the mid-pipes.
5. Now, install the rear hanger brackets. The “L” bracket gets bolted with
the supplied hardware to an existing hole located in the rear cross-member at
about the same location as the original hanger would have been installed. The
rubber hanger portion of the hanger bracket must hang towards the side of the
car. This bracket hanger will soon attach to the outlet of the muffler and the
polished tip.
6. Next, slide the mufflers (The center is the outlet) onto the mid-pipes.
Make sure to install the clamps before sliding onto the mid-pipes. Now, slide
the downturn tailpipes/tip into the outlet of the mufflers. Using a u-clamp, hang
the center outlet of the muffler and the tip. Snug the clamp.
7. Before tightening, make all the adjustment to the system for the
proper fit. Begin tightening the clamps from front to back. (Warning: tight-
ened clamps will leave marks in the tubing, making removal or adjustments
extremely difficult) or for the best fit weld all the slip joints. The 409 stainless
can be welded with your standard Mig welder, and is highly recommended
when possible.
8. If DCC10S down-pipes are used, slide them directly into the “s”
pipes. Donut style gaskets are required at the manifold connection and
available at your local auto parts store. The heat riser must be removed from
the passenger side before installing the down-pipes. If a heat riser is still
required on your application, the down-pipe must be shortened.
9. Some header applications require custom bent collectors due to the
header not ending square and parallel to the car. For proper system fit, your
collectors must point straight into the “S” bent x-pipe extensions.
Now it’s time to fire up that muscle car and enjoy your
new Pypes Performance Exhaust.
Pypes Performance Exhaust
2705 Clemens Road Bldg 105A Hatfield, PA 19440
800-421-3890 (voice) 267-638-3507 (fax)
www.pypesexhaust.com
(A) ‘S‘ X-pipe
Extensions
(B) X-pipe Assembly
(C) Mid-pipes
(D) Mufflers
(E) Tips
(A)
(B)
(C)
(D)
(E)
Thanks again for purchasing your new 409 stainless steel Pypes Performance
Exhaust cross-member back system. Please be sure to confirm all the com-
ponents in the kit were received in your shipment before beginning installation.
These kits will include (2) “S” x-pipe extensions (1) X-pipe kit, (2) mid-pipes
(2) Mufflers, (2) polished tailpipes, (2)rear hangers, (8) clamps, and (1) bonus
pack. The kit includes the muffler of your choice: (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. Installation of this kit will require some sim-
ple 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 .
(A)
(C)
(D)
(E)