Owners manual

ManualsBrandsGibson Performance ManualsAutomotiveGP403S-C Performance Header Fits 07-11 Wrangler

GP403S-C

CERAMIC HEADER

Jeep Wrangler 3.8L

Thank you very much for purchasing our Gibson header

for your vehicle.

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

Technical Department at (800) 528-3044

Monday through Friday

8:00 a.m. to 5:00 p.m. PST.

1270 Webb Circle, Corona, CA 92879

Summary of content (7 pages)

PAGE 1
GP403S-C CERAMIC HEADER Jeep Wrangler 3.8L Thank you very much for purchasing our Gibson header for your vehicle. If you need further assistance, please do not hesitate to call our Technical Department at (800) 528-3044 Monday through Friday 8:00 a.m. to 5:00 p.m. PST.
PAGE 2
WHEN THESE INSTRUCTIONS ARE FOLLOWED PRECISELY, YOU WILL FIND THE INSTALLATION OF YOUR EXHAUST SYSTEM TO BE RELITIVELY SIMPLE. WE CANNOT OVER EMPHASIZE THE IMPORTANCE OF ADHERING STRICTLY TO THIS PROVEN APPROACH, AS IT WILL VIRTUALLY ELIMINATE ANY DIFFICULTIES, WHICH YOU MIGHT OTHERWISE ENCOUNTER.
PAGE 3
NOTE: HEADERS ARE NOT MEANT TO SERVE AS “EXHAUST SYSTEM SUPPORT HANGERS”. ADDITIONAL HANGERS MAY NEED TO BE ADDED AT THE TIME OF THE INSTALLATION OF THE HEADERS SO THAT THE EXHAUST SYSTEM SUPPORTS ITSELF WHEN THE COLLECTOR BOKTS ARE REMOVED. HEADERS THAT HAVE “SAGGED” DUE TO THE LACK OF SUFFICIENT EXHAUST SYSTEM SUPPORT WILL NOT BE REPLACED UNDER WARRANTY. NOTE: HEADER BOLTS SHOULD BE INSPECTED FOR TIGHTNESS FROM TIME TO TIME TO ENSURE OPTIMUM GASKET LIFE.
PAGE 4
INSTALLATION INSTRUCTIONS NOTE: INSTALLATION OF THESE HEADERS REQUIRES AN ADEQUATE WORK SPACE, GENERAL MECHANIC'S TOOLS, GENERAL MECHANIC "KNOW-HOW" AND A REASONABLE DEGREE OF EXPERIENCE. 1. PLACE VEHICLE IN A LOCATION WHERE THE FLOOR IS SOLID AND FLAT, WITH ADEQUATE LIGHTING. DO NOT ATTEMPT TO WORK ON A HOT ENGINE. HEAT CAUSES METAL TO EXPAND AND MAKES REMOVAL OF FASTENERS DIFFICULT. DISCONNECT THE BATTERY CABLES FROM THE BATTERY.
PAGE 5
3. NOW INSTALL GIBSON HEADER USING SUPPLIED GASKET RE-USING FACTORY BOLTS FOR INSTALL. TORQUE BOLTS FROM CENTER – OUT TO 30-35 FT-LBS. (NOTE: ON #4 CYLINDER AND SPARK PLUG WIRE, REMOVE STOCK SPARK PLUG BOOT USING A RAZOR BLADE MAKING SURE NOT TO CUT SPARK PLUG WIRE. USING WD-40 INSTALL NEW SUPPLIED 45O BOOT FOR HEAT CLEARANCE FROM HEADER.) ALSO INSTALL 2x6” SUPPLIED HEAT WRAP ON ALL SPARK PLUG WIRES FOR PROTECTION. AT THIS TIME USE SUPPLIED ZIP TIES TO KEEP SPARK PLUG WIRES FROM RESTING ON HEADER TUBES. 4.
PAGE 6
. NOW INSTALL GIBSON HEADER WITH SUPPLIED GASKET RE-USING STOCK BOLTS TORQUING TO 3035 FT-LBS FROM CENTER OUT. AFTER HEADER IS IN PLACE, USE SUPPLIED HEAT WRAP ON SPARK PLUG WIRES AND ZIP TIE TO KEEP AWAY FROM HEADER FOR HEAT PROTECTION. (NOTE: MAKE SURE ALL WIRES AND HOSES HAVE PROPER CLEARANCE FROM HEADER!) 7. AFTER HEADERS ARE IN PLACE. RE-INSTALL FACTORY Y-PIPE ASSEMBLY USING SUPPLIED BOLT KIT. NOW RE-CONNECT BATTERY. CHECK FOR ALL PROPER CLEARANCES THEN START VEHICLE AND THEN CHECK FOR ANY LEAKS.
PAGE 7
PARTS LIST: (1) DRIVER'S SIDE HEADER ASSEMBLY (1) PASSENGER'S SIDE HEADER ASSEMBLY (2) HEADER GASKETS (1) BO-1060 BOLT KIT (6) HEAT WRAP (1) SPARK PLUG BOOT (1) 3X5 PLATE (1) Heat shield P/S (2) CLAMP (6) ZIP TIES