{"product_id":"amvirtuo-07-14-silverado-long-tube-headers","title":"AMVirtuo Long Tube Headers for 2007-2014 Chevy Silverado GMC Sierra Tahoe Suburban Yukon Cadillac Escalade, 4.8L 5.3L 6.0L 6.2L V8","description":"\u003cp\u003e\u003cstrong\u003eFitment and Compliance Notice:\u003c\/strong\u003e Professional installation is recommended. Verify vehicle fitment, clearance, exhaust requirements, and local regulations before purchase.\u003c\/p\u003e\n\u003ch2 style=\"margin: 0.0px 0.0px 15.0px 0.0px; font: 18.0px 'Helvetica Neue'; color: #0c0c0c;\"\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/h2\u003e\n\u003ch3 style=\"margin: 0.0px 0.0px 8.0px 0.0px; font: 14.0px 'Helvetica Neue'; color: #0c0c0c;\"\u003e\u003cb\u003eBroad V8 Engine Coverage\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp style=\"margin: 0.0px 0.0px 12.0px 0.0px; font: 13.0px 'Helvetica Neue'; color: #1d1d1d;\"\u003eThese long tube headers fit the most popular GM truck and SUV V8 engines from 2007-2014 — 4.8L, 5.3L, 6.0L, and 6.2L. Whether your Silverado runs the everyday 5.3L or your Escalade packs the 6.2L, this set has you covered across Chevrolet, GMC, and Cadillac platforms.\u003c\/p\u003e\n\u003ch3 style=\"margin: 0.0px 0.0px 8.0px 0.0px; font: 14.0px 'Helvetica Neue'; color: #0c0c0c;\"\u003e\u003cb\u003e304-Grade Stainless Steel Build\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp style=\"margin: 0.0px 0.0px 12.0px 0.0px; font: 13.0px 'Helvetica Neue'; color: #1d1d1d;\"\u003eConstructed from 304-grade stainless steel for long-lasting corrosion and heat resistance. Handles daily driving, heavy towing loads, and harsh winter climates without rust-through or material degradation that plagues cheaper headers.\u003c\/p\u003e\n\u003ch3 style=\"margin: 0.0px 0.0px 8.0px 0.0px; font: 14.0px 'Helvetica Neue'; color: #0c0c0c;\"\u003e\u003cb\u003eFull TIG-Welded Construction\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp style=\"margin: 0.0px 0.0px 12.0px 0.0px; font: 13.0px 'Helvetica Neue'; color: #1d1d1d;\"\u003eEvery joint on these Chevy truck headers receives a complete TIG-welded seam — not the spot-welding found on budget alternatives. Deep weld penetration and low porosity create robust joints that resist cracking even under repeated heat cycling and heavy acceleration.\u003c\/p\u003e\n\u003ch3 style=\"margin: 0.0px 0.0px 8.0px 0.0px; font: 14.0px 'Helvetica Neue'; color: #0c0c0c;\"\u003e\u003cb\u003eOptimised Exhaust Pulse Tuning\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp style=\"margin: 0.0px 0.0px 12.0px 0.0px; font: 13.0px 'Helvetica Neue'; color: #1d1d1d;\"\u003eThe manifold design evens out exhaust pulses across all cylinders, cutting backpressure and producing smoother low- to mid-range torque. You'll notice the difference when pulling a trailer or merging onto the highway in your 5.3 Silverado or Yukon.\u003c\/p\u003e\n\u003ch3 style=\"margin: 0.0px 0.0px 8.0px 0.0px; font: 14.0px 'Helvetica Neue'; color: #0c0c0c;\"\u003e\u003cb\u003eCNC-Flanged Surfaces\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp style=\"margin: 0.0px 0.0px 12.0px 0.0px; font: 13.0px 'Helvetica Neue'; color: #1d1d1d;\"\u003eCNC-machined flange surfaces ensure precise, leak-free mating with your cylinder heads and exhaust system. Includes gaskets and mounting hardware for a straightforward install. Professional installation is recommended for best results.\u003c\/p\u003e\n\u003ch2 style=\"margin: 0.0px 0.0px 15.0px 0.0px; font: 18.0px 'Helvetica Neue'; color: #0c0c0c;\"\u003e\u003cb\u003eDescription\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp style=\"margin: 0.0px 0.0px 12.0px 0.0px; font: 13.0px 'Helvetica Neue'; color: #1d1d1d;\"\u003eAMVirtuo long tube headers replace the restrictive factory manifolds on your 2007-2014 GM full-size truck or SUV. The 1.75\" primary tubes flow into a 3\" collector, opening up the exhaust path for your 4.8L, 5.3L, 6.0L, or 6.2L V8 engine to breathe more efficiently. Less backpressure means stronger acceleration and a more aggressive exhaust note.\u003c\/p\u003e\n\u003cp style=\"margin: 0.0px 0.0px 12.0px 0.0px; font: 13.0px 'Helvetica Neue'; color: #1d1d1d;\"\u003eThese \u003cb\u003eSilverado long tube headers\u003c\/b\u003e are built entirely from 304-grade stainless steel and fully TIG-welded at every connection point. CNC-flanged mating surfaces guarantee a proper seal at the cylinder head and collector, so you won't be chasing exhaust leaks after installation. The 7\/16\" head flange and 3\/8\" outlet flange add rigidity where it matters most.\u003c\/p\u003e\n\u003ch2 style=\"margin: 0.0px 0.0px 15.0px 0.0px; font: 18.0px 'Helvetica Neue'; color: #0c0c0c;\"\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h2\u003e\n\u003ctable style=\"margin: 15.0px 0.0px 15.0px 0.0px; border-collapse: collapse; width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #0b00cf; padding: 12.0px 15.0px; color: #ffffff; font-weight: bold; font-size: 12px;\"\u003eVehicle\u003c\/td\u003e\n\u003ctd style=\"background-color: #0b00cf; padding: 12.0px 15.0px; color: #ffffff; font-weight: bold; font-size: 12px;\"\u003eYears\u003c\/td\u003e\n\u003ctd style=\"background-color: #0b00cf; padding: 12.0px 15.0px; color: #ffffff; font-weight: bold; font-size: 12px;\"\u003eEngine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px; color: #1d1d1d;\"\u003eChevy Silverado 1500 \/ 2500 \/ 3500\u003c\/td\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px; color: #1d1d1d;\"\u003e2007-2013\u003c\/td\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px; color: #1d1d1d;\"\u003e4.8L V8, 5.3L V8, 6.0L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px; color: #1d1d1d;\"\u003eGMC Sierra 1500\u003c\/td\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px; color: #1d1d1d;\"\u003e2007-2013\u003c\/td\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px; color: #1d1d1d;\"\u003e4.8L V8, 5.3L V8, 6.0L V8, 6.2L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px; color: #1d1d1d;\"\u003eChevy Suburban 1500 \/ 2500\u003c\/td\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px; color: #1d1d1d;\"\u003e2007-2014\u003c\/td\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px; color: #1d1d1d;\"\u003e5.3L V8, 6.0L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px; color: #1d1d1d;\"\u003eChevy Tahoe\u003c\/td\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px; color: #1d1d1d;\"\u003e2007-2014\u003c\/td\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px; color: #1d1d1d;\"\u003e4.8L V8, 5.3L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px; color: #1d1d1d;\"\u003eGMC Yukon \/ Yukon XL\u003c\/td\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px; color: #1d1d1d;\"\u003e2007-2014\u003c\/td\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px; color: #1d1d1d;\"\u003e4.8L V8, 5.3L V8, 6.0L V8, 6.2L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px; color: #1d1d1d;\"\u003eCadillac Escalade\u003c\/td\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px; color: #1d1d1d;\"\u003e2007-2014\u003c\/td\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px; color: #1d1d1d;\"\u003e6.2L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin: 0.0px 0.0px 8.0px 0.0px; font: 13.0px 'Helvetica Neue'; color: #67140c;\"\u003e⚠️ \u003cb\u003eImportant Fitment Notes\u003c\/b\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0.0px 0.0px 12.0px 0.0px; font: 13.0px 'Helvetica Neue'; color: #1d1d1d;\"\u003e\u003cb\u003eEngine Compatibility:\u003c\/b\u003e Fits 4.8L (LR4), 5.3L (L76\/LY5\/LMG), 6.0L (L96\/LY6), and 6.2L (L94) V8 engines in GMT900-platform vehicles. Does NOT fit 4.3L V6 or 6.6L Duramax diesel engines.\u003c\/p\u003e\n\u003cp style=\"margin: 0.0px 0.0px 12.0px 0.0px; font: 13.0px 'Helvetica Neue'; color: #1d1d1d;\"\u003e\u003cb\u003eFlex Fuel Vehicles:\u003c\/b\u003e Compatible with E85\/flex-fuel variants of the listed engines.\u003c\/p\u003e\n\u003cp style=\"margin: 0.0px 0.0px 12.0px 0.0px; font: 13.0px 'Helvetica Neue'; color: #1d1d1d;\"\u003e\u003cb\u003eClassic Models:\u003c\/b\u003e The 2007 \"Classic\" body style (GMT800 continuation) is not covered — these headers fit only the 2007+ \"new body\" (GMT900) design.\u003c\/p\u003e\n\u003ch2 style=\"margin: 0.0px 0.0px 15.0px 0.0px; font: 18.0px 'Helvetica Neue'; color: #0c0c0c;\"\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h2\u003e\n\u003ctable style=\"margin: 15.0px 0.0px 15.0px 0.0px; border-collapse: collapse; width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #0b00cf; padding: 12.0px 15.0px; color: #ffffff; font-weight: bold; font-size: 12px;\"\u003eSpecification\u003c\/td\u003e\n\u003ctd style=\"background-color: #0b00cf; padding: 12.0px 15.0px; color: #ffffff; font-weight: bold; font-size: 12px;\"\u003eDetails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eHeader Type\u003c\/td\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eLong Tube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003e304-Grade Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003ePrimary Tube Size\u003c\/td\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003e1.75\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eOutlet Size\u003c\/td\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003e3.00\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eHead Flange Thickness\u003c\/td\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003e7\/16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eOutlet Flange Thickness\u003c\/td\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003e3\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eWelding Process\u003c\/td\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eFull TIG-Welded (all seams)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eFlange Type\u003c\/td\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eCNC-Machined\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eFitment Type\u003c\/td\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eDirect Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"margin: 0.0px 0.0px 15.0px 0.0px; font: 18.0px 'Helvetica Neue'; color: #0c0c0c;\"\u003e\u003cb\u003eHeaders vs Stock Exhaust Manifolds\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp style=\"margin: 0.0px 0.0px 12.0px 0.0px; font: 13.0px 'Helvetica Neue'; color: #1d1d1d;\"\u003eFactory cast iron manifolds restrict exhaust flow and are prone to cracking under thermal stress. Here's how AMVirtuo long tube headers compare:\u003c\/p\u003e\n\u003ctable style=\"margin: 15.0px 0.0px 15.0px 0.0px; border-collapse: collapse; width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #0b00cf; padding: 12.0px 15.0px; color: #ffffff; font-weight: bold; font-size: 12px;\"\u003eFeature\u003c\/td\u003e\n\u003ctd style=\"background-color: #0b00cf; padding: 12.0px 15.0px; color: #ffffff; font-weight: bold; font-size: 12px;\"\u003eStock Manifolds\u003c\/td\u003e\n\u003ctd style=\"background-color: #0b00cf; padding: 12.0px 15.0px; color: #ffffff; font-weight: bold; font-size: 12px;\"\u003eAMVirtuo Long Tube Headers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eCast Iron\u003c\/td\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003e304-Grade Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003ePrimary Tube\u003c\/td\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eIntegrated cast passages\u003c\/td\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003e1.75\" mandrel-bent tubing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eCollector Outlet\u003c\/td\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eN\/A (factory Y-pipe connection)\u003c\/td\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003e3.00\" outlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eWeld Quality\u003c\/td\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eN\/A (cast iron)\u003c\/td\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eFull TIG-welded seams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eCorrosion Resistance\u003c\/td\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eLow — rusts over time\u003c\/td\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eHigh — stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eBackpressure\u003c\/td\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eHigh\u003c\/td\u003e\n\u003ctd style=\"background-color: #f5f5f5; border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eReduced for better flow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eHeavy\u003c\/td\u003e\n\u003ctd style=\"border-bottom: 1px solid #d7d7d7; padding: 10.0px 15.0px; font-size: 12px;\"\u003eLighter stainless construction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"margin: 0.0px 0.0px 15.0px 0.0px; font: 18.0px 'Helvetica Neue'; color: #0c0c0c;\"\u003e\u003cb\u003eInstallation Notes\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp style=\"margin: 0.0px 0.0px 12.0px 0.0px; font: 13.0px 'Helvetica Neue'; color: #1d1d1d;\"\u003eProfessional installation is recommended. Key points for your GMT900 long tube headers install:\u003c\/p\u003e\n\u003cul style=\"list-style-type: disc; margin: 0.0px 0.0px 12.0px 0.0px; font: 13.0px 'Helvetica Neue'; color: #1d1d1d;\"\u003e\n\u003cli style=\"margin: 0.0px 0.0px 6.0px 0.0px;\"\u003e\n\u003cb\u003ePre-Installation:\u003c\/b\u003e Allow the engine and exhaust system to cool completely before beginning work.\u003c\/li\u003e\n\u003cli style=\"margin: 0.0px 0.0px 6.0px 0.0px;\"\u003e\n\u003cb\u003eGasket Sealing:\u003c\/b\u003e Use the included gaskets and hardware. Apply anti-seize compound to all studs and bolts for easier future removal.\u003c\/li\u003e\n\u003cli style=\"margin: 0.0px 0.0px 6.0px 0.0px;\"\u003e\n\u003cb\u003eTorque Sequence:\u003c\/b\u003e Tighten flange bolts in a crisscross pattern to 18-22 ft-lbs to avoid warping the CNC flange.\u003c\/li\u003e\n\u003cli style=\"margin: 0.0px 0.0px 6.0px 0.0px;\"\u003e\n\u003cb\u003eRe-Torque:\u003c\/b\u003e After the first heat cycle, re-torque all flange bolts. Check again after 500 miles.\u003c\/li\u003e\n\u003cli style=\"margin: 0.0px 0.0px 6.0px 0.0px;\"\u003e\n\u003cb\u003eClearance:\u003c\/b\u003e Verify steering shaft, frame rail, and transmission cooler line clearance before final tightening. Minor repositioning of O2 sensor wiring may be needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0.0px 0.0px 12.0px 0.0px; font: 13.0px 'Helvetica Neue'; color: #1d1d1d; background-color: #fff4c6; padding: 10px;\"\u003e\u003cb\u003ePro Tip:\u003c\/b\u003e Spray the factory manifold-to-cat bolts with penetrating oil the night before you plan to install. GM often uses thread-locker from the factory, and these bolts are notorious for snapping if you rush the removal. Take your time, apply steady pressure, and have extractor bits on hand just in case.\u003c\/p\u003e\n\u003ch3 style=\"margin: 0.0px 0.0px 8.0px 0.0px; font: 14.0px 'Helvetica Neue'; color: #0c0c0c;\"\u003e\u003cb\u003eWhat's Included\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; font: 13.0px 'Helvetica Neue'; color: #1d1d1d;\"\u003e\n\u003cli style=\"margin: 0.0px 0.0px 6.0px 0.0px;\"\u003e1x Driver Side Long Tube Header\u003c\/li\u003e\n\u003cli style=\"margin: 0.0px 0.0px 6.0px 0.0px;\"\u003e1x Passenger Side Long Tube Header\u003c\/li\u003e\n\u003cli style=\"margin: 0.0px 0.0px 6.0px 0.0px;\"\u003eExhaust Gaskets\u003c\/li\u003e\n\u003cli style=\"margin: 0.0px 0.0px 6.0px 0.0px;\"\u003eMounting Hardware Kit (screws, bolts)\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"AMVirtuo","offers":[{"title":"Default Title","offer_id":48176550084708,"sku":"AM-33932","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/1889\/8276\/files\/6391ace427ade714b70fb966024ae804_6cbe7884-9fd4-42f1-9f15-93cc1dd75e0d.jpg?v=1775468235","url":"https:\/\/avomotor.com\/es\/products\/amvirtuo-07-14-silverado-long-tube-headers","provider":"AMVirtuo MOTOR","version":"1.0","type":"link"}