{"product_id":"axle-back-exhaust-for-pontiac-gto-2005-2006-6-0l","title":"Axle Back Exhaust for Pontiac GTO (2005-2006) 6.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eStraight-Through Axle Back Exhaust for 2005-2006 Pontiac GTO (VZ)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The axle back exhaust replaces the restrictive factory rear muffler assemblies on the 2005-2006 Pontiac GTO to reduce exhaust backpressure and maximize gas velocity while producing an aggressive V8 exhaust note.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Pontiac GTO Exhaust Restriction\u003c\/h3\u003e\n\u003cp\u003eThe factory rear exhaust system on the \u003cstrong\u003eVZ\u003c\/strong\u003e chassis utilizes bulky, chambered mufflers engineered with internal baffles to suppress volume. This internal baffling creates unwanted turbulence and backpressure in the secondary exhaust path of the \u003cstrong\u003eLS2\u003c\/strong\u003e engine. Furthermore, the OEM canisters add excessive unsprung weight behind the rear axle and are prone to internal baffle corrosion and acoustic deadening degradation over time.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis axle-back muffler delete bypasses the OEM chamber restriction using mandrel-bent 304 stainless steel tubing. By creating a direct, straight-through exhaust path, it stabilizes gas velocity and reduces thermal buildup at the rear subframe. High-grade 304 stainless steel resists galvanic corrosion, road salt oxidation, and extreme exhaust gas temperatures. Precision-aligned hangers match the factory mounting brackets, providing secure fitment to factory-location rubber isolators while paired with polished outlet tips.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePair of axle-back exhaust pipes with tips\u003c\/li\u003e\n  \u003cli\u003eMounting hardware as included with the listing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2005-2006 Pontiac GTO\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003eLS2\u003c\/strong\u003e (6.0L) \/ \u003cstrong\u003eVZ\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e400 hp \/ 400 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eB-EXT-MD083\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2005 Pontiac GTO 6.0L LS2 V8 (Dual Exit Valance)\u003c\/li\u003e\n  \u003cli\u003e2006 Pontiac GTO 6.0L LS2 V8 (Dual Exit Valance)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the VZ GTO?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2005-2006 Pontiac GTO equipped with the \u003cstrong\u003eLS2\u003c\/strong\u003e 6.0L engine. \u003cstrong\u003eDoes not fit 2004 GTO models equipped with the 5.7L LS1 single-side exit configuration.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eAre specialized tools or welding required for installation?\u003c\/h4\u003e\n\u003cp\u003eThis is a direct bolt-on axle-back kit requiring basic hand tools; verify flange alignment, torque hardware to factory specifications, and check for exhaust leaks post-installation.\u003c\/p\u003e\n\n\u003ch3\u003eThe Pontiac Muscle Caliber\u003c\/h3\u003e\n\u003cp\u003eBuilt for the high-displacement Gen IV small block, this straight-through configuration extracts an uncompromised, raw V8 acoustic signature while dropping parasitic weight from the rear overhang of your modern muscle platform.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68046610268408,"sku":"DS-E37B0IBJ2","price":337.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/axle-back-exhaust-for-pontiac-gto-2005-2006-6-0l-1.jpg?v=1794266615","url":"https:\/\/performancechiptuning.com\/fr\/products\/axle-back-exhaust-for-pontiac-gto-2005-2006-6-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}