Edelbrock 5645, 5647, 5649, 5646 User Manual

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Catalog #5645

Rev. 9/06 - DA/mc

EDELBROCK CAT-BACK EXHAUST SYSTEM

Vehicle Applications: See Below

Catalog #5645, #5646, #5647, & #5649

INSTALLATION INSTRUCTIONS

Vehicle Applications:

Catalog #5645 - 1987-1993 Ford Mustang GT with 5.0L V8 engine Catalog #5646 - 1986-1993 Ford Mustang LX &

1986 Mustang GT with 5.0L V8 engine

Catalog #5647 - 1994-1997 Ford Mustang GT with 4.6L / 5.0L V8 engine Catalog #5649 - 1999-2004 Ford Mustang GT with 4.6L V8 engine

Suggested Tools for Installation:

❑ 3/8” rachet set and 15mm socket ❑ 9/16” and 15mm wrenches ❑ Jackstands ❑ Liquid penetrant

Disassembly

1. Raise vehicle and support with the proper jackstands, leaving the rear suspension hanging.

2. Use caution around hot exhaust systems to avoid burns.

3. Use penetrating oil on all nuts, bolts and rubber hangers.

4. If you are using a lift or jackstands, the old system can be removed in one piece by removing the lower shock bolts and the upper arm bolts to let the rear end hang down as far as possible. Remove the nuts to the catalytic converter pipes and remove the old muffler assembly.

5. If you do not have access to a lift, it will be necessary to cut off the tail pipes behind the mufflers, then remove old mufflers.

Please study these instructions carefully before installing your new Cat-Back Exhaust System. If you have any questions, please contact our Technical Hotline at: 1-800-416-8628, 7:00 am to 5:00 pm, Monday through Friday, Pacific Standard Time or e-mail us at Edelbrock@Edelbrock.com

WARNING: Exhaust gas contains carbon monoxide, a deadly invisible gas. Correct any leaks before driving!

Assembly

1. Install the left and right muffler assembly to the catalytic pipes. Refer to parts list to identify left and right muffler. Using O.E.M. nuts, snug mufflers only hand tight at this time.

2. Install the 2-1/2” band clamps onto the mufler outlets. Install the tail pipes into the mufflers, and the brackets into the stock rubber isolators.

3. Align the system to clear the chassis and suspension and tighten all fasteners. It is important to tighten catalytic pipe flanges evenly for proper leak free seal. Check and correct, if needed. NOTE: Bumper height may vary by as much as 1/2” on different vehicles, so you may need to bend the rear hangers to adjust for your application.

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.

INSTALLATION INSTRUCTIONS

WARNING: Support your vehicle with proper

jackstands rated for the total vehicle weight.

Place stands so that the rear axle is allowed to

hang free for easy system removal.

WARNING: These cat-back systems are

engineered to fit stock catalytic converters or

equivalent replacements. If you original system has

been modified, Edelbrock will not warranty fit or

performance.

Brochure #63-5645

Catalog #s 5645, 5646, 5647, 5649

Rev. 9/06 - DA/mc

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Qty. PN Description

❑ 1 25-3031 SDT Muffler Assembly, Right,

#5645, #5646, #5647

❑ 1 25-3080 SDT Muffler Assembly, Right,

#5649 only

❑ 1 25-3032 SDT Muffler Assembly, Left,

#5645, #5646 only

❑ 1 25-3037 SDT Muffler Assembly, Left,

#5647 only

❑ 1 25-3081 SDT Muffler Assembly, Left,

#5649 only

❑ 1 25-3033 Right Tailpipe (#5645 only)

❑ 1 25-3035 Right Tailpipe (#5646, #5647,

#5649)

❑ 1 25-3034 Left Tailpipe (#5645 only)

❑ 1 25-3036 Left Tailpipe (#5646, #5649)

❑ 1 25-3038 Left Tailpipe (#5647 only)

❑ 1 25-3187 Right Tailpipe Assembly (#5649)

❑ 1 25-3188 Left Tailpipe Assembly (#5649)

❑ 1 25-3172 Right Muffler Assembly (#5649)

❑ 1 25-3173 Left Muffler Assembly (#5649)

❑ 2 - 2-1/2” Band Clamps (Not Shown)

KIT CONTENTS

Cat-Back Exhaust System

Muffler Assembly (Right)

Muffler Assembly (Left)

Right Tailpipe Assembly

Left Tailpipe Assembly

Cat-Back Exhaust System #5645

Muffler Assembly (Right)

Muffler Assembly (Left)

Right Tailpipe Assembly

Left Tailpipe Assembly

Cat-Back Exhaust System #5646, #5647, & #5649