{"product_id":"gibson-612501-cat-back-exhaust-2008-to-2009-hummer-h2-6-2l","title":"Gibson 612501 Cat Back Single Exhaust 2008 to 2009 Hummer H2 Base 6.2L 3.5in 409 Stainless","description":"\u003ch3\u003eUnlock Stronger Acceleration on Your Hummer H2\u003c\/h3\u003e\n\u003cp\u003eThe Gibson 612501 Cat-Back Single Exhaust is built specifically for the 2008–2009 Hummer H2 6.2L. It features 3.5 inch 409 stainless mandrel-bent tubing and Gibson’s SuperFlow muffler, delivering dyno-proven gains of \u003cstrong\u003e10 to 15 horsepower\u003c\/strong\u003e and \u003cstrong\u003e15 to 20 lb-ft of torque\u003c\/strong\u003e, with the strongest improvements in the 1,800 to 3,000 RPM range the power band most used during towing, hill climbing, and highway passing.\u003c\/p\u003e\n\u003ch3\u003eWhy the Gibson 612501 Outperforms the Stock Exhaust\u003c\/h3\u003e\n\u003cp\u003eThe factory exhaust on the Hummer H2 is designed around emissions packaging and cost. It restricts flow and limits performance. The Gibson 612501 replaces it with freer-flowing 3.5 inch stainless tubing and a performance-tuned SuperFlow muffler, resulting in stronger low-to-mid range torque and better throttle response.\u003c\/p\u003e\n\u003ch4\u003eReal-World Performance Gains\u003c\/h4\u003e\n\u003cp\u003eMost H2 owners notice the biggest improvement during real-world driving towing, passing, and climbing hills. The gains are concentrated in the RPM range you actually use every day.\u003c\/p\u003e\n\u003ch3\u003eSound Profile and Cabin Comfort\u003c\/h3\u003e\n\u003cp\u003eThe SuperFlow muffler uses a baffled and chambered design with no internal packing. This creates an aggressive exhaust note under throttle while keeping interior drone relatively low for long highway trips.\u003c\/p\u003e\n\u003ch4\u003eBuild Quality and Durability\u003c\/h4\u003e\n\u003cp\u003eConstructed from 409 stainless steel with a polished T304 stainless tip, the 612501 offers excellent corrosion resistance. Gibson backs it with a Lifetime Limited Warranty and proudly manufactures it in the USA.\u003c\/p\u003e\n\u003ch3\u003eGibson 612501 vs Stock vs Typical Competitor\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eStock Exhaust\u003c\/th\u003e\n\u003cth\u003eGibson 612501\u003c\/th\u003e\n\u003cth\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eMild Steel\u003c\/td\u003e\n\u003ctd\u003e409 Stainless\u003c\/td\u003e\n\u003ctd\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Gains\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003e10-15 HP \/ 15-20 lb-ft\u003c\/td\u003e\n\u003ctd\u003eSimilar range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSound Character\u003c\/td\u003e\n\u003ctd\u003eQuiet\u003c\/td\u003e\n\u003ctd\u003eAggressive but refined\u003c\/td\u003e\n\u003ctd\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCabin Drone\u003c\/td\u003e\n\u003ctd\u003eMinimal\u003c\/td\u003e\n\u003ctd\u003eLow to moderate\u003c\/td\u003e\n\u003ctd\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003ctd\u003eBolt-on\u003c\/td\u003e\n\u003ctd\u003eBolt-on\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLong-Term Durability\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood to Excellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFitment 2008 to 2009 Hummer H2 6.2L\u003c\/h3\u003e\n\u003cp\u003eThis exhaust is designed for the Hummer H2 with the 6.2L engine.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eTrim\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eHummer\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003ctd\u003e6.2L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eHummer\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003ctd\u003e6.2L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFull Technical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e612501\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e677418019131\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Type\u003c\/td\u003e\n\u003ctd\u003eCat-Back Single Exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTubing\u003c\/td\u003e\n\u003ctd\u003e3.5 inch 409 Stainless Steel, Mandrel Bent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMuffler\u003c\/td\u003e\n\u003ctd\u003eSuperFlow Baffled \u0026amp; Chambered, No Internal Packing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTip\u003c\/td\u003e\n\u003ctd\u003e4 inch Polished T304 Stainless, Round Slash-Cut, Clamp-On\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExit Location\u003c\/td\u003e\n\u003ctd\u003eStraight Out the Back\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eBolt-On No Welding Required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware Included\u003c\/td\u003e\n\u003ctd\u003eAll Clamps and Factory-Style Hangers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e48 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eMade in USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLifetime Limited Warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003cp\u003eThe Gibson 612501 is designed as a complete bolt-on system. Most installs can be completed in 1 to 2 hours with basic hand tools.\u003c\/p\u003e\n\u003ch4\u003eTools Typically Required:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSocket set and ratchet\u003c\/li\u003e\n\u003cli\u003eWrenches\u003c\/li\u003e\n\u003cli\u003eWD-40 or penetrating oil\u003c\/li\u003e\n\u003cli\u003eJack and jack stands (or lift)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eInstallation Steps:\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eSafely raise and support the vehicle.\u003c\/li\u003e\n\u003cli\u003eApply penetrating oil to factory bolts and hangers.\u003c\/li\u003e\n\u003cli\u003eDisconnect the exhaust at the factory flange.\u003c\/li\u003e\n\u003cli\u003eRemove the old system and install the new Gibson exhaust from front to back.\u003c\/li\u003e\n\u003cli\u003ePosition the 4 inch tip and tighten all clamps.\u003c\/li\u003e\n\u003cli\u003eCheck for proper clearance and leaks after the system heats up.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Professional installation is recommended if you are not experienced with exhaust work.\u003c\/p\u003e\n\u003ch3\u003e50-State Legal \u0026amp; Warranty Protection\u003c\/h3\u003e\n\u003cp\u003eThis is a true cat-back system. It installs after the catalytic converter and does not modify emissions equipment. Under the Magnuson-Moss Warranty Act, installing the Gibson 612501 cannot void your factory warranty unless it is proven to be the direct cause of a failure.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the Gibson 612501 fit all Hummer H2 models?\u003c\/strong\u003e\u003cbr\u003eIt is designed for the 2008–2009 Hummer H2 with the 6.2L engine. Confirm fitment for your specific vehicle before purchasing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs there noticeable drone inside the cabin?\u003c\/strong\u003e\u003cbr\u003eMost owners find the drone level acceptable for daily driving. It is louder than stock under acceleration but generally manageable on long trips.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this exhaust require modifications to install?\u003c\/strong\u003e\u003cbr\u003eIt is designed as bolt-on. Some vehicles may need minor adjustments for perfect fitment. Professional installation is recommended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much power does it really add?\u003c\/strong\u003e\u003cbr\u003eGibson’s dyno testing shows gains of 10 to 15 horsepower and 15 to 20 lb-ft of torque, with the strongest improvements between 1,800 and 3,000 RPM.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the Gibson 612501 legal in California?\u003c\/strong\u003e\u003cbr\u003eYes. It is a cat-back system and does not modify emissions equipment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it void my Hummer warranty?\u003c\/strong\u003e\u003cbr\u003eNo. The Magnuson-Moss Warranty Act protects you when installing aftermarket exhaust systems like this one.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Gibson","offers":[{"title":"Default Title","offer_id":45891229122639,"sku":"GIB612501","price":410.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/gibson-08-09-hummer-h2-base-6_2l-3_5in-cat-back-single-exhaust-stainless-gibson.jpg?v=1781822629","url":"https:\/\/www.blackopsautoworks.com\/products\/gibson-612501-cat-back-exhaust-2008-to-2009-hummer-h2-6-2l","provider":"Black Ops Auto Works","version":"1.0","type":"link"}