Edelbrock 6652, 6653, 6752, 6753, 6852 User Manual

Pro-Flo Header

For 1994-2001 Acura Integra GSR

Catalog #6652, #6752, #6852

& For 1997-2001 Acura Integra Type R

Catalog #6653, #6753, & #6853

INSTALLATION INSTRUCTIONS

Please study these instructions carefully before installing your new Pro-Flo Header. They provide general guidelines to
be studied and understood before you remove your stock system. Failure to follow these instructions may void your
warranty. If you have any questions or problems, please contact our Technical Hotline at : 1-800-416-8628 from
7 am – 5 pm, Monday through Friday, Pacific Standard Time or e-mail us at [e-mail]. Please fill out
and mail your warranty card.

DESCRIPTION: Edelbrock Pro-Flo header components are designed to improve the exhaust efficiency of the Acura 1.8L
engine. A performance gain can be expected with the installation of the system. This system requires no welding for
installation and retains all stock emissions equipment.

Suggested tools needed for installation: This vehicle has some metric fasteners.

❑ 3/8” ratchet socket set with extensions and a good assortment of metric sockets
❑ Combination wrenches (metric)
❑ Universal 12mm and 14mm swivel sockets
❑ Jackstands, screwdrivers, pliers, crescent wrench, etc.
❑ Liquid penetrant (GM #1052627 or equivalent); anti-seize compound (GM #5613695 or equivalent)

SPECIAL NOTICE: This Edelbrock part has received an Executive Order number (E.O. #) from the California Air Resources
Board (C.A.R.B.) making it legal for street use on pollution-controlled motor vehicles in all 50 states. To assist you with
emissions equipment certification, we have included a silver fan shroud decal to help testing personnel verify that this part
is a legal replacement part on the vehicle for which it is cataloged. The adhesive-backed decal should be affixed to your
fan shroud next to the existing emission and engine specification decal. Do not cover your original equipment specification
decal with the Edelbrock fan shroud decal.

WARNING: The use of “Thermal Wrap” or any aftermarket coating process will void the warranty on your Pro-Flo header.
Those products can cause excessive heat and moisture build up resulting in corrosion and early failure of the system.

DISASSEMBLY:

1. Disconnect battery negative cable from battery.

2. Raise vehicle and support with jackstand.

3. The use of penetrating oil when removing and the use of anti-seize compound when installing nuts and bolts will
prevent the possibility of broken or stripped nuts and bolts.

4. Make sure converter is cool.

5. Remove O2 sensor (if applicable) being careful not to destroy or rupture the unit. Warning: Do not clean this unit
in any cleaning solvents and do not rupture wire.

6. Remove the two nuts from hanger bracket. Remove the two bolts and springs at the catalytic converter. Then
unbolt the three bolts at the mid-section of manifold and remove lower portion of manifold (B-section).

7. Remove the bolt that is attached to the engine block in the lower section of manifold. Remove bolts from manifold
at cylinder head and pull manifold out from top side. Note: Save all factory nuts, bolts and springs to be used
during re-assembly.

©2002 Edelbrock Corporation

Page 1 of 2

Rev. 8/02
Catalog #6652, #6752, & #6852
Catalog #6653, #6753, & #6853

ASSEMBLY

1. Install (a section) of header assembly from top side with gasket and 9 hardened washers (supplied in kit), using
factory bolts/nuts as applicable.

2. Install secondary section (B section) to (A section) top half using the three 10mm. Bolts and lock washers with
the two crush ring gaskets (all supplied in kit). Use anti-seize on threads. (The two crush rings should be installed
with the seam or split down towards B-section).

3. With donut in place, connect header to catalytic converter using stock hardware as before.

4. Install O2 sensor, if equipped. Use anti-seize on threads of sensor and torque to 30 ft. lbs.

PARTS LIST

Catalog #6652 (Polished)

Qty. Part # Description

1 25-9180 Pro-Flo Header (A section)
1 25-9181 Pro-Flo Header (B section)
1 22-6852 Installation Kit

PARTS LIST

Catalog #6752 (Unpolished)

Qty. Part # Description

1 25-9182 Pro-Flo Header (A section)
1 25-9183 Pro-Flo Header (B section)
1 22-6852 Installation Kit

PARTS LIST

Catalog #6852 (Ceramic-Coated)

PARTS LIST

Catalog #6653 (Polished)

Qty. Part # Description

1 25-9180 Pro-Flo Header (A section)
1 25-9211 Pro-Flo Header (B section)
1 22-6852 Installation Kit

PARTS LIST

Catalog #6753 (Polished)

Qty. Part # Description

1 25-9182 Pro-Flo Header (A section)
1 25-9210 Pro-Flo Header (B section)
1 22-6852 Installation Kit

PARTS LIST

Catalog #6853 (Polished)

Qty. Part # Description

1 25-9178 Pro-Flo Header (A section)
1 25-9179 Pro-Flo Header (B section)
1 22-6852 Installation Kit

©2002 Edelbrock Corporation

Qty. Part # Description

1 25-9178 Pro-Flo Header (A section)
1 25-9209 Pro-Flo Header (B section)
1 22-6852 Installation Kit

Edelbrock Corporation

2700 California Street

Torrance, CA 90503

Toll-Free Tech Line: 1-800-416-8628

Office: [phone]

Tech E-Mail: [e-mail]

Page 2 of 2

Rev. 8/02
Catalog #6652, #6752, & #6852
Catalog #6653, #6753, & #6853