Edelbrock 66182 Installation Instruction

Please study these instructions carefully before installing your new Tubular Exhaust System (TES). If you have any questions, please
contact our Technical Hotline at : 1-800-416-8628 from 7 am - 5pm, Monday-Friday, Pacific Standard Time or e-mail us at
Edelbrock@Edelbrock.com.
TUBULAR EXHAUST SYSTEM: These components are designed as a system to improve the exhaust efficiency of the GM 8.1 Liter
engine. They are constructed of 409 HP stainless steel to better withstand the high heat present with the C.P.I. engine, especially
when used for towing or other heavy duty applications. The stainless steel used for these systems is much more durable than mild
steel, although it does not appear different in appearance. These systems can be identified by the part numbers on each of the major
components. Note that a magnet will stick to this type of stainless steel; magnetic attraction is not a valid test for these systems. A
performance gain can be expected by the installation of the system. This system requires welding for installation and retains all
O.E.M. emissions equipment.
Suggested Tools Needed for Installation: This vehicle has some metric fasteners.
❑ 3/8" ratchet socket set with extensions and universal 13mm and 15mm swivel sockets
❑ Combination set of open-end wrenches
❑ Jackstands, screwdrivers, pliers, crescent wrench, etc.
❑ Mig welder (recommended) or gas welding; professional welding highly recommended
❑ Liquid penetrant, (GM #1052627) anti-seize compound (GM #5613695)
SPECIAL NOTICE: This Edelbrock Tubular Exhaust System has received an Executive Order number (E.O.#) from the California Air
Resources Board (C.A.R.B.) making it legal for street use in all 50 states. To assist you with emission equipment certification, we
have included a silver fan shroud decal to help testing personnel verify the this part is a legal replacement on the vehicle for which
it is cataloged. The adhesive-backed decal should be affixed next to the existing emission and engine specifications decal. Do not
cover any part of your original emission decal.
WARNING: The use of "Thermal Wrap" or any aftermarket coating process will void the warranty on your Edelbrock Tubular
Exhaust Systems. Those products can cause excessive heat and moisture buildup resulting in corrosion and failure of the system.
NOTE: High temperature spark plug wires and boots are recommended to withstand heat from TES.
Proper installation is the responsibility of the installer. Improper installation will void warranty and may result in
Catalog #66182 (Ceramic-Coated), #66183 (Ti-Tech Coated) - For 4L80-E Transmission
#66192 (Ceramic-Coated), #66193 (Ti-Tech Coated) - For Allison Transmission
Qty. Description
❑ 1
Header left side #25-9497 (Ceramic-coated)
❑ 1
Header right side #25-9498 (Ceramic-coated)
❑ 1
Header left side #25-9495 (Ti-Tech coated)
❑ 1
Header right side #25-9496 (Ti-Tech coated)
❑ 1
Extension Pipe left side #25-9672 (#66182, #66183)
❑ 1
Extension Pipe right side #25-9673 (#66182, #66183)
❑ 1
Extension pipe left side #25-9675 (#66192, #66193)
❑ 1
Extension pipe right side #25-9676 (#66192, #66193)
❑ 4
Flat washers, 3/8"
Catalog #s 66182, 66183, 66192, 66193
©2007 Edelbrock Corporation
For 2002-2006 Chevrolet & GMC Suburban / Pick-Up 2500/3500 Series,
®
2 & 4 WD, 8.1L V8, Auto Transmission without E.G.R. or A.I.R.
IMPORTANT NOTE:
poor performance and engine or vehicle damage.
KIT CONTENTS
Catalog #66182, #66183, #66192, #66193
Qty. Description
❑ 16
Hex header bolts, 3/8"-16 x 1"
❑ 2
Chevy V8 port gaskets
❑ 2
Donut gaskets, 3"
❑ 4
Hex bolt, 3/8"-16 x 2 1/2"
❑ 20
Lock washers, 3/8"
❑ 1
Tie wraps, 11"
❑ 5
Spark plug boots
❑ 5
Spark plug boot ends
❑ 4
Hardened 3/8" washer (black)
❑ 4
3/8"-16 Hex nuts
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TUBULAR EXHAUST SYSTEM
INSTALLATION INSTRUCTION
Brochure #63-66182
Rev. 6/07 - DA/mc