Edelbrock 5670 User Manual

©2006 Edelbrock Corporation
Brochure #63-0489

Page 1 of 2

Catalog #5670

Rev. 1/06 - DA/mc

EDELBROCK CAT-BACK EXHAUST SYSTEM

for 1994-1996 Impala SS with 5.7L V8 Engine

Catalog #5670

INSTALLATION INSTRUCTIONS

Application: Designed for 1994-1996 Impala SS with 5.7L V8 Engine.

Suggested Tools for Installation:

❑ 3/8” rachet set and metric sockets ❑ 15mm wrench
❑ Jackstands and jack ❑ Liquid penetrant and rubber lubricant

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.

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. Remove the nuts to the
catalytic converter pipes and remove the old muffler
assembly.

5. Remove the stock hangers behind the stock mufflers.

Assembly

1. Install supplied rear muffler hangers using stock
muffler hanger holes.

2. Install the left and right I-pipes to catalytic converter
and snug bolts (do not tighten at this time). Slip
mufflers onto I-pipe. Slip 2-1/2” band clamps on and
snug bolts.

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 [e-mail]

. Please fill out and mail your warranty card.

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

3. Install I-pipe bracket in factory location (on left side
transmission mount). The two mounting bolts are
slotted to help you align exhaust system. Do not
tighten at this time.

4. Slip a 2-1/2” U-clamp onto left I-pipe and snug pipe to
bracket installed in Step 2.

5. Slip the 2-1/2” U-clamps over the muffler outlets.
Install the overaxle pipe into the mufflers, slip on 2­1/2” U-clamps and let hang on hangers.

6. Slip band clamps onto tailpie inlet end, then slip
tailpipes onto overaxle pipes. Engage hangers on
tailpipes into stock isolators.

7. Using band clamps, install tailpipe tips onto outlet of
tailpipe and snug clamps.

8. Align system to clear frame, heat shields, suspension,
etc., and tighten working from front to rear of vehicle.
NOTE: Bumper height may vary by as much as 1/2” on
different vehicles, so you may need to bend the rear
hanger to adjust for your vehicle.

9. Check for leaks and correct as needed.

KIT CONTENTS

Catalog #5670

Qty. Part # Description

1 25-3100 I-Pipe Assembly (left)

1 25-3101 I-Pipe Assembly (right)

1 25-3102 Overaxle Pipe Assembly (left)

1 25-3103 Overaxle Pipe Assembly (right)

1 25-3104 Tailpipe Assembly (left)

1 25-3105 Tailpipe Assembly (right)

2 25-3236 Tailpipe Tips (SS)

2 25-5510 SDT Muffler

2 33-8001 Hangers

2 46-1076 Flange

1 23-1726 I-Pipe Bracket

3 46-5185 2-1/2” U-Clamps

6 46-6611 2-1/2” Band Clamps

Band Clamp

Band Clamp

Band Clamp

Band Clamp

U-Clamp

U-Clamp

U-Clamp

Band Clamp

Right I-Pipe Assembly

Left I-Pipe Assembly

Band Clamp

Left I-Pipe Bracket

Hanger

SDT Muffler

Assembly

(Left)

SDT Muffler

Assembly

(Right)

Hanger

Flange

Hanger

Left Tailpipe Assembly

Right Tailpipe Assembly

Hanger

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.

©2006 Edelbrock Corporation

Brochure #63-0489

Catalog #5670

Rev. 1/06 - DA/mc

Page 2 of 2