Gibson 619900 User manual

INSTRUCTION MANUAL
CAT-BACK STAINLESS SINGLE EXHAUST
FORD EXPEDITION, LINCOLN NAVIGATOR
4.6L-5.4L 2/4WD 4DR
PART # 619900
G H
E
A F B C F D
ITEM PART # QTY DESCRIPTION
A 123-60002S 1 3” STAINLESS HEADPIPE
B 421887 1 STAINLESS SUPERFLOW MUFFLER
C 124-70001S 1 3" STAINLESS OVERAXLE TAILPIPE
D 101-50032RS-6 1 3" STAINLESS TURNOUT PIPE
E 500360 1 3-1/2" STAINLESS STEEL TIP
F OHD300 2 3" CLAMP
G 5757 1 2-1/2" CLAMP
H 4101 1 REAR MUFFLER T-HANGER
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 [phone], Monday
through Friday, 8:00 am to 5:00 pm.

EXHAUST INSTALLATION #619900
WHEN INSTALLING THIS EXHAUST SYSTEM MAKE SURE TO USE ALL THE PRPER SAFETY
PRECAUTIONS. USE JACK STANDS WHEN UNDER TRUCK, SET PARKING BRAKE, BLOCK
TIRES AND USE SAFETY GLASSES. DO NOT WORK WITH HOT PIPES!
SUGGESTED TOOLS:
HACKSAW, JACKSTAND, ½” WRENCH & SOCKET, 9/16” SOCKET & WRENCH,
15MM WRENCH, WD-40
MAKE SURE YOU HAVE A 1" CLEARANCE ON ALL PIPES FROM ALL
RUBBER BRAKE LINES, FUEL LINES, SHOCKS, TIRES, PIPES, ETC.
LAY OUT THE GIBSON
EXHAUST ON THE FLOOR
SO IT LOOKS LIKE THE
DRAWING. TO REMOVE
YOUR FACTORY EXHAUST
REMOVE IT FROM THE
CLAMP LOCATED IN FRONT
OF THE MUFFLER. YOU MAY
NEED TO HEAT IT UP FOR
EASIER REMOVAL. USE
WD-40 TO AID YOU IN
REMOVING HANGERS LEAVE
ALL RUBBER GROMMETS IN
PLACE.
INSTALL HEADPIPE #A
ONTO FACTORY PIPE. LINE
UP NOTCH. USE CLAMP #G
TO SECURE. DO NOT
TIGHTEN.
INSTALL MUFFLER #B
1 ½” TO 2” ONTO HEADPIPE
WITH INLET TOWARDS THE
MUFFLER. ROTATE MUFFLER
UNTIL OUTLET IS AT THE
7 O’CLOCK POSTION. USE
CLAMP #F TO SECURE. DO
NOT TIGHTEN. NEXT,
INSTALL REAR MUFFLER
HANGER #H ONTO OUTLET
OF MUFFLER. INSERT
HANGERS INTO GROMMETS.
DO NOT TIGHTEN. MUFFLER
INLET IS LOOKING INTO
THE LOUVERS.
INSTALL TAILPIPE #C
INTO MUFFLER 1 ½” TO 2”.
INSERT WELDED HANGER
INTO RUBBER GROMMET.
YOU WILL USE CLAMP #H
TO SECURE PIPE TO
MUFFLER. DO NOT
TIGHTEN.
INSTALL EXIT PIPE #D
ONTO YOUR TAILPIPE.
ROTATE UNTIL LEVEL.
USE CLAMP #F TO
SECURE. DO NOT
TIGHTEN.
INSTALL YOUR
STAINLESS TIP TO
YOUR DESIRED LOOK.
NOW TIGHTEN ALL
CLAMPS FROM THE
FRONT WORKING YOUR
WAY TO THE BACK.