Gibson 315530 User manual

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INSTRUCTION MANUAL
CAT-BACK SINGLE EXHAUST
SUBURBAN, YUKON XL
4.8L, 5.3L, 2/4WD
PART # 315530
ITEM PART # QTY DESCRIPTION
A 700270 1 HEADPIPE WITH FLANGE #GP-115
B 788824 1 SUPERFLOW MUFFLER
C 4138 1 REAR MUFFLER HANGER
D 700271 1 3” OVERAXLE TAILPIPE
E OHD300 1 3” CLAMP
F 500360 1 3 1/2” STAINLESS TIP
G 4147 1 3” FRONT HANGER
Thank you for purchasing our GIBSON EXHAUST SYSTEM for you vehicle. If you
need further assistance, please do not hesitate to call our Technical Department at
1-800-528-3044 Monday through Friday, 8:00 am to 5:00 pm.

EXHAUST INSTALLATION #315530
WHEN INSTALLING THE GIBSON EXHAUST MAKE SURE TO USE ALL THE PROPER
SAFETY PRE-CAUTIONS. USE A JACK STAND WHEN UNDER THE TRUCK, SET PARKING
BRAKE, BLOCK TIRES AND USE SAFETY GLASSES. DO NOT WORK WITH HOT PIPES!
SUGGESTED TOOLS:
15MM SOCKET, 9/16” SOCKET, ½”WRENCH & SOCKET, JACKSTAND, HACKSAW,WD-40
LAY OUT THE EXHAUST SO IT LOOKS LIKE THE DRAWING AND COMPARE TO THE MANUAL.
FOR EASIER REMOVAL OF
THE FACTORY EXHAUST.
CUT BEHIND THE MUFFLER
AT THE TAILPIPE. THEN
UNBOLT THE FACTORY
HEADPIPE AT THE FLANGE
IN FRONT OF THE MUFFLER
YOU WILL BE REUSING.
STOCK BOLTS.
INSTALL HEADPIPE # A
ONTO FACTORY FLANGE RE-
USING YOUR STOCK BOLTS
TO SECURE. DO NOT
TIGHTEN. NEXT, INSTALL
FRONT HANGER #G ONTO
HEADPIPE AND INSERT
HANGER INTO RUBBER
GROMMENT .
INSTALL THE OVERAXLE
TAILPIPE #D INTO THE
OUTLET OF THE MUFFLER
AND INSERT WELDED
HANGER INTO STOCK
RUBBER GROMMET.
YOU MAY NEED TO
LOOSEN THE SPARE TIRE
AND PUSH IT TO THE
DRIVER SIDE OF THE
VEHICLE FOR CLEARANCE
PURPOSES.
MAKE SURE YOU HAVE A MINIMUM OF A 1” CLEARANCE AWAY FROM ALL
RUBBER BRAKE LINES, TIRES, SHOCKS, FUEL LINES, ETC.
INSTALL YOUR
STAINLESS STEEL TIP.
USE ANY STAINLESS
CLEANER AND A
SCOTCH BRITE PAD.
NOW, FIRMLY
TIGHTEN ALL CLAMPS,
BOLTS, FLANGE, AND
HANGERS.
INSTALL MUFFLER # B
ONTO HEADPIPE 1 ½” TO 2”
WITH INLET TOWARDS
THE MOTOR MUFFLER
INLET IS LOOKING INTO
THE LOUVERS. MUFFLER
OUTLET SHOULD BE AT THE
8 O’CLOCK POSITION.
NEXT , INSTALL REAR
MUFFLER HANGER # C
ONTO MUFFLER OUTLET
INSERT HANGER INTO
RUBBER GROMMET.
DO NOT TIGHTEN.