Manual

SGT22/SGT27
409 Stainless Steel Cat-back exhaust systems for
1999-08 GM 1500 series
SGT22: 1999-06 1500 Ext Cab Short Bed
SGT27: 2007-08 1500 119” &143.5” WB
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-t all the components into a complete
system on your garage oor, using the diagram provided.
2. Remove the existing exhaust starting with the tailpipe rst. Cut the tailpipe off just
behind the mufer, remove. Cut the mufer out next. Remove the pipe from the mufer to the
catalytic converter.
3. Now it’s time to install your new components. Begin by choosing the proper after cat
mid-pipe for your application. Most kits are supplied with two options depending on cab and
wheelbase. It is really simple to determine the one used without measuring, the outlets of the
mufer should land just under or just in front of the factory mufer hanger on the truck. Here is a
quick reference chart with approx required cutting measurements:
• SGT22: MGT22 will bolt directly to the factory ange just after the cat, no trim required.
• Reg. cab std box: Trim 11.5” from mufer forward/ Trim 4.5” off mid-pipe MGT27B
• Ext cab std box: Trim 15.5” from mufer forward, no additional trim
• CC short box: Trim 15.5” from mufer forward, no additional trim
4. Install the proper mid pipe for your application. Be sure to slide the necessary clamps
on the pipe before sliding it into the mufer. With the mufer installed, the outlets should land
closely under the mufer hangers. Install 2 clamps on the outlets of the mufer.
5. You can now install the two over axle pipes onto the outlets of the mufer. The driver
side pipe is bent to travel around the spare tire. Install two HVH11S hangers, one on each over
axle pipe and hang in the factory rubber mufer hangers. The threaded rod on the hanger al-
lows for height adjustability. Snug up the clamps to hold the mufer in place.
6. Next, install the PVT10 “S” bend tailpipe extensions. One HVH11S should be slide
over each tailpipe, adjust the threaded rods to the correct hanging height. The passenger side
hanger will slip into the factory rubber hanger. The driver side will require the provided TPHV6
rubber block hanger to be bolted using 5/16” bolts to the frame rail approx 18” from the rear
bumper.
7. Now install the tips with the HVC21 clamps.
8. Finish the system by making all your nal adjustments to position of the muf-
er, over axle pipes, tailpipes and tips. Now tighten all the clamps and hangers in the
desired locations (Warning: tightened clamps will leave marks in the tubing, making
removal or adjustments extremely difcult) or for the best t weld all the slip joints. A
minimum of ½” of clearance should be maintained around all piping. All clamps should
be tightened to 65 ft lbs and should be checked after the rst 50 miles. The 409 stainless
can be welded with your standard mig welder, and is highly recommended when pos-
sible.
Now it’s time to re up that muscle truck and enjoy your
new Pypes Performance Exhaust.
Pypes Performance Exhaust
2880 Bergey Road Unit O Hateld, PA 19440
800-421-3890 (voice) 215-712-9968 (fax)
www.pypesexhaust.com
(A) Mid-pipe
(B) Mufer
(C) Over-Axle Pipes
(D) LH Tailpipe
(E) “S“ Bend Tailpipes
(F) Tips
(G) HVH11S Clamp/Hanger
(H) TPHV6 Hanger Block
(A)
(C)
(E)
(F)
(B)
Thanks again for purchasing your new 409 stainless steel Pypes Performance Ex-
haust Cat-back system. Please be sure to conrm all the components in the kit were
received in your shipment before beginning installation. These kits will include (1) cat-
back midpipe, (1) Mufer (2) Over-axle pipes from mufer, (1) LH tailpipe, (2) PVT10
“S“ bend tailpipe extensions, (2) 12” polished tips, (6/7) 2-1/2”clamps, (1) 3” clamp, (4)
HVH11S Clamp/hanger combo,(2)TPHV6 hanger blocks and mounting hardware. The
kit you purchased includes an 18” mufer, you will see the following notation after the
system number: (R) Race Pro, and (V) Violator. If you nd any component missing,
please contact our ofce 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 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 .
Note: Pypes Performance Exhaust Cat-back truck systems are designed to t stock
height vehicles with OEM hitches and spare wheel and tire combos. Vehicles with
aftermarket components such as trailer hitches, larger spares or ride height changes
may require modications to the system for proper t.
(D)
(C)
(E)
(G)
(H)