Edelbrock 5728 User Manual

Edelbrock Cat-Back Exhaust System

For  2001-2006 Suburban/Yukon XL and

2002-2006 Avalanche

5.3L V8, 2 & 4 WD

Catalog #5728

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. Please fill out and mail your warranty card.

Suggested Tools for Installation:

❑

3/8" ratchet set with SAE and metric sockets

❑

9/16” and 15mm wrench

❑

Jackstands and jack

❑

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 the bolts and clamps from the system and

lubricate the rubber hangers.

5. Use a long pry bar to pull the rubber hangers off of the

pipe hangers. 

6. Remove the old system.  In some cases, you will find it

easier to cut the overaxle pipe to remove it.

ASSEMBLY
1. Bolt I-pipe to factory outlet flange (behind catalytic

converters).  

Note:  Do not tighten flange bolts at

this time (snug only).

2. Slip the muffler onto the intermediate pipe with a 

3-1/2” band clamp on the front.  

Note: Inlet end of

muffler is marked.  Snug the clamp so you can adjust
the system later.

3. Install a 3 1/2”band clamp on the front of the overaxle

pipe and engage it into the stock rubber hangers as you
slip it into the muffler.  Snug the clamps.

4. Slip tailpipe onto overaxle pipe, install 3” band clamp

and snug clamp.

5. Install hanger clamp assembly #23-4039 onto I-pipe

and engage into stock rubber hanger.  Snug clamp to
pipe.

6. Working from the front of the system, align and tighten

each pipe from the cat back.

7. Check for clearance to body, frame, and driveline as

you tighten the system from front to rear.

8. Check for leaks and correct, if necessary.