Pypes Performance Exhaust SCC40R User Manual
Scc40r
SCC40R
409 Stainless Steel cross-member back exhaust system for
1986-91 L98 C4 Corvettes
SCC40R: 2-1/2” w/ x-pipe, Race Pro mufflers and rectangular 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 diagram provided.
2. Remove the existing exhaust system from the headers or
exhaust manifolds back.
3. Now it’s time to install your new components. Begin by
installing your down-pipes, manifold cars only.
4. The direct fit x-pipe will get installed next to the down-pipes
or collector reducers. 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 x-pipe which was designed to
clear both auto and manual transmissions. For proper system fit,
your collectors must run parallel with your rocker panels.
5. Next, install the two cat delete mid-pipes. The “L” bracket
provided in the kit will keep the mid-pipes at the correct distance
apart and also hang the system from the frame. The short portion
of the “L” will point up towards the floor of the vehicle. The pro-
vided nuts should be tightened to insure the pipes stay in position.
The rubber strap will get bolted to the bracket and to the stud on
the vehicle in the drive shaft tunnel.
6. Now, install the rear tailpipes. They will route under the rear
and to the left and right sides of the vehicle.
7. Last, slide the axle-back mufflers onto the tail pipes. The
hanger welded to the muffler body will hang in the factory bracket
mounted to the frame.
8. Before tightening the clamps, make all the adjustment to
the system for the proper fit. Begin tightening the clamps from
front to back.
9. 409 stainless can be welded with your standard Mig
welder, and is highly recommended when possible.
10. Again, 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 x-pipe extensions.
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) X-pipe Assembly
(B) Mid-pipes
(C) Tail-pipes
(D) Mufflers
(E) Tips
(B)
(B)
(C)
(D)
(E)
Thanks again for purchasing your new 409 stainless steel Pypes Perfor-
mance Exhaust 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) mid-pipes, (2) tail-
pipes,(2) Race Pro axle-backs , (8) clamps, and (1) bonus pack. If you are
still utilizing your factory manifolds, you will need additional down-pipes,
DCC40. If you find any component missing, please contact our office at
800-421-3890 for replacement. Installation 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 installa-
tion, air tools are recommended. Fully welding the system is always rec-
ommended 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)