Hummer Headers

PACESETTER SHORTY HEADERS, ARMOR COAT -- Features 1-1/2 Mandrel-Bent 16-Gauge Mild Steel Primary Tubing, 2-1/2 Collector, And Thick CNC-Machined Steel Flanges, Utilizes Pacesetter's Armor Coating That Provides A Polished 2000%XB0F High Temperature Metallic-Ceramic Finish, Reduces Underhood Temperatures, Resists Rust And Corrosion, Easy To Clean, Designed To Replace Inefficient Stock Exhaust Manifolds, Adds Power And Performance While Increasing Engine Efficiency, Connects To Stock Y-Pipe, Easy Bolt-On Installation, 50-State Legal, California State Air Resources Board Approved, Recommended For Off Road Use Only, Please Allow 10-12 Business Days To Ship Due To The Coating Process

Fits the following 2003-2004 Hummer H2 submodels:

• 2003-2004: Base; 8 Cyl 6.0L;

GIBSON PERFORMANCE EXHAUST HEADERS, 409L STAINLESS STEEL, CERAMIC-COATED -- 50-state legal, EPA compliant, C.A.R.B. approved; Add power up to 7 h.p. and 11 lb.-ft. of torque; 1.5 in. tube diameter, 16-gauge tube wall thickness, stock flange connector, 0.375 in. standard head flange; Premium gasket and installation hardware included; Has no EGR and air injection; Shorty style; Round head port; Direct fit bolt-on replacement for factory exhaust manifold; Made of high quality 409L stainless steel mandrel-bent tubing to maintain constant exhaust flow for outstanding performance; They feature heavy duty 0.375 in. thick laser cut port flanges and OEM style connections; They attach to OE crossover pipe; Dyno-tuned and engineered to deliver more usable horsepower and torque; These headers increase the engine's efficiency by allowing it to breathe easier and run at cooler temperature; Well suited for lowered and raised vehicles, street, and off-road; Dyno tested to perform best with Gibson's cat-back exhaust system; With Gibson's limited lifetime warranty.

Fits the following 2007-2009 Hummer H2 submodels:

• 2007-2007: Base; 8 Cyl 6.0L;
• 2008-2009: Base; 8 Cyl 6.2L;

GIBSON PERFORMANCE EXHAUST HEADERS, 409L STAINLESS STEEL, CERAMIC-COATED -- 50-state legal, EPA compliant, C.A.R.B. approved; Add power up to 7 h.p. and 11 lb.-ft. of torque; 1.5 in. tube diameter, 16-gauge tube wall thickness, stock flange connector, 0.375 in. standard head flange; Premium gasket and installation hardware included; Has no EGR and air injection; Shorty style; Round head port; Direct fit bolt-on replacement for factory exhaust manifold; Made of high quality 409L stainless steel mandrel-bent tubing to maintain constant exhaust flow for outstanding performance; They feature heavy duty 0.375 in. thick laser cut port flanges and OEM style connections; They attach to OE crossover pipe; Dyno-tuned and engineered to deliver more usable horsepower and torque; These headers increase the engine's efficiency by allowing it to breathe easier and run at cooler temperature; Well suited for lowered and raised vehicles, street, and off-road; Dyno tested to perform best with Gibson's cat-back exhaust system; With Gibson's limited lifetime warranty.

Fits the following 2007-2009 Hummer H2 submodels:

• 2007-2007: Base; 8 Cyl 6.0L;
• 2008-2009: Base; 8 Cyl 6.2L;

GIBSON PERFORMANCE HEADERS, NICKEL CHROME PLATED -- 50-state legal, EPA compliant, C.A.R.B. approved; 1.625 in. tube diameter, 16-gauge tube wall thickness, stock flange connector, 0.375 in. standard head flange; Premium gasket and installation hardware included; Has no EGR and air injection; Shorty style; Round head port; Direct fit bolt-on replacement for factory exhaust manifold; Made of nickel chrome plating heavy duty 14-gauge mandrel-bent tubing to maintain constant exhaust flow for outstanding performance; They feature heavy duty 0.375 in. thick laser cut port flanges and OEM style connections; They attach to OE crossover pipe; Dyno-tuned and engineered to deliver more usable horsepower and torque; These headers increase the engine's efficiency by allowing it to breathe easier and run at cooler temperature; Well suited for lowered and raised vehicles, street, and off-road; Dyno tested to perform best with Gibson's cat-back exhaust system; With Gibson's limited lifetime warranty.

Fits the following 2003-2006 Hummer H2 submodels:

• 2003-2006: Base; 8 Cyl 6.0L;

GIBSON PERFORMANCE HEADERS, NICKEL CHROME PLATED -- 50-state legal, EPA compliant, C.A.R.B. approved; 1.625 in. tube diameter, 16-gauge tube wall thickness, stock flange connector, 0.375 in. standard head flange; Premium gasket and installation hardware included; Has no EGR and air injection; Shorty style; Round head port; Direct fit bolt-on replacement for factory exhaust manifold; Made of nickel chrome plating heavy duty 14-gauge mandrel-bent tubing to maintain constant exhaust flow for outstanding performance; They feature heavy duty 0.375 in. thick laser cut port flanges and OEM style connections; They attach to OE crossover pipe; Dyno-tuned and engineered to deliver more usable horsepower and torque; These headers increase the engine's efficiency by allowing it to breathe easier and run at cooler temperature; Well suited for lowered and raised vehicles, street, and off-road; Dyno tested to perform best with Gibson's cat-back exhaust system; With Gibson's limited lifetime warranty.

Fits the following 2007-2009 Hummer H2 submodels:

• 2007-2007: Base; 8 Cyl 6.0L;
• 2008-2009: Base; 8 Cyl 6.2L;

GIBSON PERFORMANCE EXHAUST HEADERS, 409L STAINLESS STEEL, CERAMIC-COATED -- 50-state legal, EPA compliant, C.A.R.B. approved; 1.625 in. tube diameter, 16-gauge tube wall thickness, stock flange connector, 0.375 in. standard head flange; Premium gasket and installation hardware included; Has no EGR and air injection; Shorty style; Round head port; Direct fit bolt-on replacement for factory exhaust manifold; Made of high quality 409L stainless steel mandrel-bent tubing to maintain constant exhaust flow for outstanding performance; They feature heavy duty 0.375 in. thick laser cut port flanges and OEM style connections; They attach to OE crossover pipe; Dyno-tuned and engineered to deliver more usable horsepower and torque; These headers increase the engine's efficiency by allowing it to breathe easier and run at cooler temperature; Well suited for lowered and raised vehicles, street, and off-road; Dyno tested to perform best with Gibson's cat-back exhaust system; With Gibson's limited lifetime warranty.

Fits the following 2003-2006 Hummer H2 submodels:

• 2003-2006: Base; 8 Cyl 6.0L;

GIBSON PERFORMANCE EXHAUST HEADERS, 409L STAINLESS STEEL, NATURAL FINISH -- 50-state legal, C.A.R.B. certified; Increases power up to 18 h.p. and 32 lb.-ft. of torque; 1.625 in. tube diameter, 16-gauge tube wall thickness, stock flange connector, 0.375 in. standard head flange; Includes gaskets, bolts, washers, and nuts; Without EGR and air injection; Shorty style; Round head port; Direct fit bolt-on replacement for factory exhaust manifold; Made of high quality 409L stainless steel mandrel-bent tubing to maintain constant exhaust flow for outstanding performance; Features heavy duty 0.375 in. thick laser cut port flanges and OEM style connections; They attach to OE crossover pipe; Dyno-tuned and engineered to deliver more usable horsepower and torque; Designed to increase the engine's efficiency by allowing it to breathe easier and run at cooler temperature; Well suited for lowered and raised vehicles, street, and off-road; Dyno tested to perform best with Gibson's cat-back exhaust system; No welding required; With Gibson's limited lifetime warranty.

Fits the following 2003-2006 Hummer H2 submodels:

• 2003-2006: Base; 8 Cyl 6.0L;

Shorty Headers, Direct Replacement, Heavy Duty, Leak Free Flanges, Mandrel Bent Tubing, Increased Performance And Mileage, Exhaust Manifold Only, With o A.I.R.., With o EGR, Ext. Pipes Not Included, Street Legal, With Ti-Tech Titanium Satin Finish. Please Allow 7 To 14 Days For Delivery.

Fits the following 2003-2007 Hummer H2 submodels:

• 2003-2007: Base; 8 Cyl 6.0L;

Shorty Headers, Direct Replacement, Heavy Duty, Leak Free Flanges, Mandrel Bent Tubing, Increased Performance And Mileage, Exhaust Manifold Only, With o A.I.R.., With o EGR, Ext. Pipes Not Included, Street Legal, With Ceramic Coated Finish

Fits the following 2003-2007 Hummer H2 submodels:

• 2003-2007: Base; 8 Cyl 6.0L;

JBA CAT4WARD SHORTY HEADERS, STAINLESS STEEL -- 1.625 in. Primary Tube, 14-Gauge, Made Of 409 Stainless Steel, These Headers Are Constructed Through Race-Proven Technology For Maximum Horsepower And Torque Gains, They Improve Throttle Response, Resist Warping, Prevent Leakage, Increase Flow, And Accommodate Cylinder Head Porting, Their Features Include Mandrel-Bent Stainless Steel Primary Tubes, Patented JBA Firecone Collector, Factory Style Emission Connections, Extra Thick Collector Domes, 0.625 in. Thick CNC Laser-Cut Flanges, And Oversized Exhaust Ports, 50-State Smog Legal, C.A.R.B. Certified, Easy Installation, With JBA's Limited Lifetime Warranty

Fits the following 2003-2004 Hummer H2 submodels:

• 2003-2004: Base; 8 Cyl 6.0L;

BBK CNC-SERIES PERFORMANCE HEADER SYSTEM, POLISHED CERAMIC COATING -- 1 3/4, Features Standard Heavy-Duty Mandrel-Bent Tubing, Precision Die-Stamped And Laser-Cut Flanges That Are Used To Achieve Maximum Performance, Proven To Add 12-20 Horsepower, Includes New Bolts And Gaskets For A Simple Bolt-On, With Manufacturer's Limited One-Year Warranty

Fits the following 2003-2004 Hummer H2 submodels:

• 2003-2004: Base; 8 Cyl 6.0L; "GAS, FI, VIN U"

BBK CNC-SERIES FULL-LENGTH HEADERS, CHROME FINISH -- Features 1.75 in. CNC Mandrel-Bent Tubing For Unrestrictive Airflow And 1-Piece Laser Cut 0.375 in. Flange For Added Strength And Durability, Dyno And Pressure Tested To Ensure Leak-Free Performance And Maximum Performance, Includes Screw-In Studs, 50-State EPA Legal, Direct Bolt-On, With BBK's Limited 1-Year Warranty

Fits the following 2003-2004 Hummer H2 submodels:

• 2003-2004: Base; 8 Cyl 6.0L; "GAS, FI, VIN U"