Owners manual

Installation Instructions

Cat-Back Stainless Split Rear Exhaust

Chevy Silverado / GMC Sierra 1500 Truck 5.3L 2/4wd

Crew Cab, Standard Bed 6.5’

Part #65661

ITEM

PART

QUANTITY

DESCRIPTION

999700800S

3" Stainless Headpipe

11235S

Superflow Stainless CFT Muffler

999700797S

2.25" Stainless Passenger Side Over Axle Tailpipe

999700798S

2.25" Stainless Driver Side Over Axle Tailpipe

1231-700988S

2.25" Stainless Exit Pipe

OHD300

3" Clamp

5756

2.25" Clamp

4342

Driver Side Rear Hanger

BO-101

Bolt Kit for Hanger

4240

Rubber Grommet

500639

4.0” Rolled Stainless Tips

ZIP

Zip Ties

S103

Tab

Thank you for purchasing our Gibson Exhaust System for your vehicle.

If you need further assistance, please do not hesitate to call our technical department at

(800) 528 -3044 Monday through Friday, 8am to 5 pm.

PAGE 1
Installation Instructions Cat-Back Stainless Split Rear Exhaust Chevy Silverado / GMC Sierra 1500 Truck 5.3L 2/4wd Crew Cab, Standard Bed 6.5’ Part #65661 ITEM A B C D E F G H I J K L M PART 999700800S 11235S 999700797S 999700798S 1231-700988S OHD300 5756 4342 BO-101 4240 500639 ZIP S103 QUANTITY 1 1 1 1 2 1 4 1 1 1 2 2 1 DESCRIPTION 3" Stainless Headpipe Superflow Stainless CFT Muffler 2.25" Stainless Passenger Side Over Axle Tailpipe 2.25" Stainless Driver Side Over Axle Tailpipe 2.
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Installation Instructions #65661 When installing this exhaust system make sure to use proper safety precautions. Use jack stands when working under the vehicle, set parking brake, block tires and use safety glasses and gloves. Allow exhaust to cool before attempting installation. Severe injury or burns could occur if safety measures are not taken. SUGGESTED TOOLS: 1/2", 9/16", 15mm wrenches & sockets, WD-40, hacksaw, jack stands 1. Disconnect the negative battery cable before removal of OEM exhaust.