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Brochure #63-5772
Rev. 3/07 - DA/mc
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©2007 Edelbrock Corporation
Catalog #5772
Edelbrock Cat-back Exhaust System
for 1998-2002 LS1 Camaro/Firebird
Catalog #5772
INSTALLATION INSTRUCTIONS
Please study these instructions carefully before installing your new Cat-back Exhaust System. If you have any questions,
contact our Technical Hotline at: 1-800-416-8628 , 7am - 5pm, Monday-Friday, Pacific Standard Time or e-mail us at
Edelbrock@Edelbrock.com.
Suggested Tools for Installation:
❑ 3/8" ratchet set and metric sockets ❑ Jack and jackstand
❑ 15mm wrench ❑ Liquid penetrant and rubber lubricant
DISASSEMBLY
1. Raise vehicle and support with proper jackstands for
the weight, leaving the suspension hanging.
2. Use caution around hot exhaust systems to avoid
burns.
3. Use penetrating oil on all nuts and bolts.
4. Remove all nuts, bolts, and hanger lances from the rear
of the catalytic converter to the tailpipes and save
them.
5. Remove the old system. In some cases, you will find it
easier to cut the overaxle pipe to remove it.
ASSEMBLY
1. Install the intermediate pipe over the catalytic outlet
pipe, using the 2-3/4” clamp, snug the pipe just
enough to allow for adjustment. Position clamp for
best ground clearance.
2. Install the overaxle pipe in over the axle from the rear.
As you rotate it into position, slip the hanger bracket on
the tube onto the stock frame mounted rubber hanger.
Line the intermediate pipe rear outlet up with the front
of the overaxle pipe and slip them together. Install one
of the 3”band clamps on the connection and just snug
it so that you can adjust.
3. Install muffler onto outlet of overaxle pipe along with a
3” band clamp.
4. Install elbow #25-3224 on the left side outlet of the
muffler and elbow #25-3225 on the right side outlet
using 2-1/2” band clamps.
5. Install left hanger clamp #23-4068 onto O.E. rubber
isolator using supplied bolt, nut, and washers. Larger
fender washer goes against isolator. Snug clamp.
6. Install tailpipes onto elbows, snug the hanger clamp on
the left side. Install a 3” band clamp on the right side
elbow and snug the clamp.
7. Now begin at the front of the vehicle, align the system,
paying particular attention to the overaxle area. When
you have the overaxle pipe centered between the inner
panel and the gas tank shield, tighten up the band
clamp behind converter and 3” band clamp on the
overaxle connection. Make sure that you rotate the
band clamp to clear suspension-to-chassis movement.
8. Rotate the muffler up at the rear (about 10 degrees),
align the tailpipes and tighten everything up as you
align.
NOTE: Due to large production tolerances on GM FBody cars, it may be necessary to trim overaxle pipe at
the muffler inlet. CAUTION: There needs to be a
minimum of 2” slipped into muffler for proper
clamping. Tailpipe centering can be affected by how
muffler is positioned on vehicle; muffler should be
parallel to the rear axle. Trimming of the elbows at the
muffler can also be used to adjust tailpipe centering.
9. Check for leaks and correct as needed.
WARNING!!!
Exhaust gas contains carbon monoxide, a deadly invisible gas. Correct any leaks before driving!
IMPORTANT NOTE:
Proper installation is the responsibility of the installer. Improper installation will void warranty and may result
in poor performance and engine or vehicle damage.
®
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Page 2 of 2
Brochure #63-5772
Rev. 3/07 - DA/mc
©2007 Edelbrock Corporation
Catalog #5772
WARNING: Support your vehicle with proper
jackstands or ramps rated for the total vehicle weight.
Place stands so that the rear axle is allowed to hang
free for easy system removal.
WARNING: These cat-back systems are engineered
to fit stock catalytic converters or equivalent replace-
ments. If your original system has been modified,
Edelbrock will not warranty fit or performance.
Overaxle Pipe Assembly
Intermediate Pipe Assembly
Muffler (SDT)
Band Clamp
Tailpipes (Polished)
Elbow (Left)
Elbow (Right)
KIT CONTENTS
Catalog #5772
Qty. Part # Description
1 55763 Muffler (SDT)
1 25-3164 I-Pipe
1 25-3060 Overaxle Pipe
1 25-3224 Elbow (Left)
1 25-3225 Elbow (Right)
1 25-3226 Tailpipes (Polished Stainless)
1 23-4068 Hanger Clamp
2 46-6612 3” Band Clamps
2 46-6611 2-3/4” Band Clamps
Edelbrock Corporation, 2700
California St., Torrance, CA 90503
Tech Line: (800) 416-8628
Office: (310) 781-2222
E-Mail: Edelbrock@Edelbrock.com
®
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