Edelbrock 6601 User manual

Catalog #6601, #66011, & #66012
©2003 Edelbrock Corporation Page 1of 3 Rev. 8/03
TUBULAR EXHAUST SYSTEM
For 1994 - 1999 Dodge Ram Pick-Up, 1500 & 2500
Series, 5.2L & 5.9L V8, Auto/Std. Transmission, 2 & 4 WD
Catalog #6601, 66011, & 66012
INSTALLATION INSTRUCTION
Please study these instructions carefully before installing your new Tubular Exhaust System (TES). If you have any
questions or problems, please contact our Technical Hotline at : 1-800-416-8628 from 7 am - 5pm, Monday-Friday,
Pacific Standard Time or e-mail us at [email protected]. Please fill out and mail your warranty card.
TUBULAR EXHAUST SYSTEM: These components are designed as a system to improve the exhaust efficiency of the
Dodge 5.2L & 5.9L 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 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 come with a coat of black paint for good looks and protection during shipping and storage, and they 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 does require welding for installation (see note below) and retains all O.E.M. emissions
equipment.
Suggested Tools Needed for Installation: This vehicle has some metric fasteners.
❑ Mig welder (recommended) or gas welder - Professional welding is highly recommended.
❑3/8” rachet socket with extensions and universal 13mm and 15mm swivel sockets
❑ Combination set of open-end wrenches
❑ Hacksaw
❑ Jackstands, screwdrivers, pliers, crescent wrench, etc.
❑Liquid penetrant, (GM #1052627) and 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 that 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. No additional thermal isolation is required, as T.E.S. are Pro Tech-coated for corrosion resistance
and long life.
IMPORTANT NOTES:
1. The paint used on non-coated T.E.S. is for protection during shipping and storage and will burn off soon after the
engine is started. Those who desire a longer lasting finish should sand-blast the T.E.S. to remove the original
paint, then apply high temperature header paint, such as VHT, available at most auto parts stores.
2. When cleaning any Edelbrock Pro Tech-coated T.E.S., use only soap and warm water. The use of caustic solvents
(i.e. gunks, etc.) will mar or damage the Pro-Tech coating.
3. High temperature spark plug wires and boots are recommended to withstand heat from T.E.S.
4. When installing this system on a truck equipped with a standard transmission, it may be necessary to do some
grinding on aluminum bellhousing. The first area is where the left side collector flange is. The other area is where
the left crossover pipe goes under the bellhousing. Only minor grinding may be needed to obtain better clerance
in these areas.

Catalog #6601, #66011, & #66012
©2003 Edelbrock Corporation Page 2of 3 Rev. 8/03
DISASSEMBLY
1. Disconnect negative battery cable.
2. Raise vehicle and remove O2 sensor from catalytic
converter, being careful not to damage.
3. Unbolt and remove exhaust pipe/catalytic converter
assembly. Before removing exhaust pipe/catalytic
converter assembly, determine the position of
catalytic inlet for re-installation. Either note
measurements or mark bottom of floorboard with
chalk to show catalytic location. (Do not damage
converter).
4. Cut head pipes off from catalytic converter
approximately 1/2” ahead of weld (See Figure 1).
RIGHT SIDE
1. Remove air inlet from engine to intake manifold.
2. Remove spark plugs.
3. Unbolt E.G.R. flange from manifold.
4. Remove manifold and studs.
5. Install T.E.S. flange gasket and T.E.S. manifold from
top. Install header bolts supplied, and leave loose
enough to ensure proper alignment.
NOTE: Use flat washers at slotted ends and lock
washers on all bolts.
6. Re-attach E.G.R. tube (1996 only - install block-off
plate supplied on T.E.S.).
7. Install right extension to catalytic (slip over the top
catalytic nipple) and bolt onto right T.E.S. manifold
with donut gasket in place.
8. Tighten flange bolts. Be sure to locate donut gasket
with equal space all around for the best seal (See
Figure 2).
9. With everything in place, tack weld extension pipe to
catalytic converter.
NOTE: Tack welding should not be done until the
entire system is securely bolted in place. MIG
welding is desirable but gas welding can be used.
LEFT SIDE
1. Remove spark plugs.
2. Remove exhaust manifold and studs.
3. Install T.E.S. flange gasket and T.E.S. manifold from
top.
4. Install left crossover pipe with donut gasket over
catalytic nipple and bolt onto T.E.S. Be sure to
locate donut gasket with equal space all around for
the best seal (See Figure 2).
5. With everything in place, tack weld left crossover
pipe to catalytic converter.
NOTE: MIG welding is desirable but gas welding
can be used.
6. After tack welding, remove assembly and complete
weld.
7. Re-install assembly and tighten all bolts.
8. Re-install spark plugs and wires.
9. Check all wires and lines for adequate clearance.
FINAL INSPECTION
1. Check all hydraulic, vacuum, and fuel lines to
ensure there is adequate clearance to T.E.S.
components.
2. Re-connect battery.
3. At this point, it is a good idea to look everything
over and make sure that nothing was missed in
assembly.
4. Start vehicle and bring up to normal operating
temperature. Check for possible leaks.
5. Turnengine offand letcool. Tighten allbolts again.
INSTALLATION INSTRUCTIONS

Catalog #6601, #66011, & #66012
©2003 Edelbrock Corporation Page 3of 3 Rev. 8/03
KIT CONTENTS
Catalog #6601, #66011, & #66012
Qty. Description Qty. Description
1Manifold left side (#25-9080) 4Hex capscrews; 3/8” x 2”
1Manifold right side (#25-9081) 2Hex nuts; 5/16”-18
1Extention pipe - left (#25-9594) 2Hex bolts; 5/16”-18 x 1-1/4”
1Extension pipe - right (#25-9595) 4Lock washers; 3/8”
12 Hex header bolts; 5/16” - 18” x 1” 14 Lock washers; 5/16”
2Chrysler V8 port gaskets 8Flat washers; 5/16”
1EGR gasket 1EGR block-off plate #79-8051
(for 1996 only)
2Donut gaskets; 2-1/4”
Edelbrock Corporation
2700 California St.
Torrance, CA 90503
Tech Line: 1-800-416-8628
E-Mail: [email protected]
Figure 1
Side view of catalytic converter Figure 2
Side view of converter/headpipe connection
Oxygen Sensor Location
Cut 1/2” in front of weld
Donut Gasket
Make sure the spacing is
equal all the way to
ground connection