Edelbrock 66022, 66023 User Manual
Catalog #66022, #66023
©2006 Edelbrock Corporation
Page 1 of 3
Brochure #63-66022
Rev. 8/06 - DA/mc
TUBULAR EXHAUST SYSTEM
Applications: See Below
Catalog #66022, #66023
INSTALLATION INSTRUCTIONS
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.
APPLICATIONS: For 1995-1997 Chevrolet/Pontiac Camaro/Firebird; Z-28, T/A, & Formula, 5.7L LT1 V8 Models with Dual
Catalytic Converters.
TUBULAR EXHAUST SYSTEM: These components are designed as a system to improve the exhaust efficiency of the GM
5.7 Liter LT1 V8 engine. They are constructed of 409 HP stainless steel to better withstand the high heat present with the
fuel injected engine, especially when used for 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 t.e.s.t for these systems. A performance gain can be expected by the installation of the system.
This system does require welding for installation and retains all O.E.M. emissions equipment.
Suggested Tools Needed for Installation: This vehicle has metric fasteners.
❑ Mig welder (recommended) or gas welder—Professional welding is highly recommended
❑ 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.
❑ Hacksaw
❑ 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 T.E.S.
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.
Catalog #66022, #66023
©2006 Edelbrock Corporation
Page 2 of 3
Brochure #63-66022
Rev. 8/06 - DA/mc
• DISASSEMBLY
1. Disconnect negative battery cable.
2. Raise vehicle and unplug both O2 sensor cables.
3. Starting with the driver's side, remove the three
bolts on the inlet flange on the catalytic
converter.
4. At midsection of left side exhaust pipe is a twobolt flange; unbolt and set catalytic converter
aside.
5. On passenger's side, remove the three bolts at
the manifold/exhaust pipe connection.
6. A two-bolt catalytic converter hanger assembly
is at mid-car; remove bolts and separate cat.
from hanger.
7. At mid-intermediate-pipe is a slip fit connection.
Loosen U-clamp and separate intermediate-pipe
from the over-axle pipe. Now remove the whole
unit from beneath and set aside.
• LEFT SIDE
1. Disconnect and remove spark plugs.
2. Disconnect temperature sensor plug.
3. Disconnect A.I.R. assembly from stock manifold.
4. Remove plastic cover around lower steering
shaft. Remove steering shaft by unbolting
(11mm) at mid-section and bottom of lower
universal joint. Slip middle joint up steering
shaft while sliding lower joint off of steering box
serrated shaft. NOTE: Be careful not to activate
Air Bag.
5. Remove manifold bolts.
6. Remove manifold from underneath car.
7. Remove O2 sensor from stock manifold (be
careful not to break or damage O2 sensor).
8. Install O2 sensor on new T.E.S. manifold before
installing manifold. Use anti-seize compound
on threads.
9. Install T.E.S. flange gasket and one 3/8"-16 x 1"
bolt, lock washer, and flat washer at rearmost
bolt hole (leave bolt loose enough to accept
T.E.S.).
10. Place manifold into position from above. Start
all bolts and washers, then tighten.
11. Replace steering shaft and plastic cover.
12. Replace temperature sensor plug.
13. Replace spark plugs and wires.
14. Replace A.I.R. assembly.
INSTALLATION INSTRUCTIONS
• RIGHT SIDE
1. Disconnect and remove spark plugs.
2. Remove fan belt.
3. Disconnect and remove alternator.
4. Disconnect A.I.R. fitting from manifold.
5. Remove bolt from EGR flange for disassembly of
EGR.
6. Remove dipstick.
7. Remove O2 sensor.
8. Remove stock manifold from underneath car.
9. Install T.E.S. flange gasket and one 3/8"-16 x 1"
bolt, lock washer, and flat washer at rearmost
bolt hole (leave bolt loose enough to accept
T.E.S.).
10. Using 1-1/8" long spacer tube, 3/8"-16 x 21/4" 12-point screw and 3/8" lock washer, reattach alternator bracket in the forward bolt
hole in cylinder head.
11. Place manifold into position from underneath
car and start one bolt at front. NOTE: Use flat
washers at slotted ends and lock washers on all
bolts.
12. Install all manifold bolts and tighten.
13. Re-attach EGR tube.
14. Re-attach spark plugs and wires.
15. Re-attach dipstick tube.
16. Re-attach A.I.R. assembly.
17. Re-attach alternator and belt.
18. Re-attach O2 sensor.
• EXTENSION PIPE
1. Cut O.E.M. exhaust pipe approximately 1/2"
above the weld at the front of the flex tube
(See Fig. 1)
.
2. Bolt the little extension pipe with donut gasket
onto the T.E.S. manifold.
3. Bolt catalytic converter back into vehicle,
making sure that cat. sets in original position.
4. Bolt on left side cat. (use flange gasket
supplied).
5. With everything in place and properly
positioned, tack weld T.E.S. extension pipe to
stock exhaust pipe in front of flex tube.
6. After tack welding, remove assembly and
complete weld.
7. Re-install assembly and tighten all bolts.
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