{"product_id":"smg-2008-gm-full-size-truck-suv-auxiliary-fuel-system","title":"SMG 2008+ GM Full-Size Truck \u0026 SUV Auxiliary Fuel System","description":"\u003ch2\u003eSMG 2008+ GM Full-Size Truck \u0026amp; SUV Auxiliary Fuel System\u003c\/h2\u003e\n\u003cp\u003eSMG’s auxiliary fuel system adds the low-side fuel volume required when the factory system becomes the limiting factor in a boosted or high-output naturally aspirated GM truck or SUV. The system integrates in-line with the factory fuel supply and uses a simple, serviceable pressure-triggered control instead of a sealed proprietary controller.\u003c\/p\u003e\n\u003cp\u003eThis is a semi-universal platform kit covering multiple generations of GM full-size trucks and SUVs. The core system is consistent, while mounting position and hose routing can vary by chassis, wheelbase and model year.\u003c\/p\u003e\n\u003ch3\u003eVehicle Families\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2008+ Chevrolet Silverado 1500\u003c\/li\u003e\n\u003cli\u003e2008+ Chevrolet Tahoe and Suburban\u003c\/li\u003e\n\u003cli\u003e2008+ GMC Sierra 1500\u003c\/li\u003e\n\u003cli\u003e2008+ GMC Yukon and Yukon XL\u003c\/li\u003e\n\u003cli\u003e2008+ Cadillac Escalade and Escalade ESV\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLight-duty\/full-size applications only.\u003c\/strong\u003e This kit is not intended for Silverado or Sierra 2500HD\/3500HD applications.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose the SMG System?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eServiceable Hobbs-switch activation with no hard-to-source proprietary controller\u003c\/li\u003e\n\u003cli\u003eGenuine Walbro in-line fuel pump\u003c\/li\u003e\n\u003cli\u003eStandard Output and High Output pump options\u003c\/li\u003e\n\u003cli\u003eGasoline and ethanol-compatible construction\u003c\/li\u003e\n\u003cli\u003eDouble-braided, PTFE-based fuel hose assemblies\u003c\/li\u003e\n\u003cli\u003eAnodized aluminum fittings and weather-resistant electrical connections\u003c\/li\u003e\n\u003cli\u003eAssembled and tested by SMG before shipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSelecting Trigger Pressure and Pump Output\u003c\/h3\u003e\n\u003cp\u003eChoose a 2 psi, 4 psi or 7 psi pressure switch for boosted applications. The 4 psi option is the most common starting point, but the correct trigger point depends on the calibration, fuel, power level and complete fuel-system configuration. Confirm the selection with the vehicle’s tuner before ordering.\u003c\/p\u003e\n\u003cp\u003eChoose \u003cstrong\u003eStandard Output\u003c\/strong\u003e for established street and moderate-power combinations, or \u003cstrong\u003eHigh Output\u003c\/strong\u003e when the build requires additional low-side fuel capacity. Pump selection must be matched to the full combination by the tuner or engine builder.\u003c\/p\u003e\n\u003cp\u003eNaturally aspirated applications require a suitable non-boost activation strategy, additional parts or custom wiring.\u003c\/p\u003e\n\u003ch3\u003eInstallation Requirements\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional fuel-system and electrical installation is strongly recommended\u003c\/li\u003e\n\u003cli\u003eFactory fuel-tank drilling and tapping are required\u003c\/li\u003e\n\u003cli\u003eRequires a 3\/8-inch NPT tap and 37\/64-inch drill bit, not included\u003c\/li\u003e\n\u003cli\u003eMounting location and hose routing vary by vehicle\u003c\/li\u003e\n\u003cli\u003eECU calibration is required after installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTuning Requirement\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eA professional tune is required.\u003c\/strong\u003e The auxiliary pump substantially changes available fuel volume. The factory control strategy must be recalibrated for the chosen pump, activation point, fuel and power level. SMG does not provide vehicle-specific tuning instructions.\u003c\/p\u003e\n\u003ch3\u003eBuild Time\u003c\/h3\u003e\n\u003cp\u003eSMG auxiliary fuel systems are assembled to order. Allow approximately \u003cstrong\u003e3–5 business days\u003c\/strong\u003e before shipment, subject to production queue and component availability.\u003c\/p\u003e\n\u003ch3\u003eWarranty and Installation Support\u003c\/h3\u003e\n\u003cp\u003eThe SMG lifetime warranty applies to systems installed by a verifiable commercial installer. DIY installation is permitted, but installation support and coverage for damage caused by wiring, plumbing, contamination, misuse or improper installation are not included. Every system is assembled and tested before leaving SMG.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThis is a high-performance aftermarket fuel system. Installation modifies the vehicle’s fuel and electrical systems. The installer and vehicle owner are responsible for safe installation, calibration and compliance with applicable laws.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/TNd9swBRVSE?si=bpUtE6bwMj8j2TWw\u0026amp;start=1494\" title=\"SMG GM truck and SUV auxiliary fuel system video\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"SMGspeed","offers":[{"title":"2psi \/ Standard Output","offer_id":45904653811772,"sku":"SMG-AUX-GMFS-2-SO","price":892.5,"currency_code":"USD","in_stock":true},{"title":"2psi \/ High Output","offer_id":45904653844540,"sku":"SMG-AUX-GMFS-2-HO","price":945.0,"currency_code":"USD","in_stock":true},{"title":"4psi \/ Standard Output","offer_id":45904653877308,"sku":"SMG-AUX-GMFS-4-SO","price":892.5,"currency_code":"USD","in_stock":true},{"title":"4psi \/ High Output","offer_id":45904653910076,"sku":"SMG-AUX-GMFS-4-HO","price":945.0,"currency_code":"USD","in_stock":true},{"title":"7psi \/ Standard Output","offer_id":45904653942844,"sku":"SMG-AUX-GMFS-7-SO","price":892.5,"currency_code":"USD","in_stock":true},{"title":"7psi \/ High Output","offer_id":45904653975612,"sku":"SMG-AUX-GMFS-7-HO","price":945.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/5934\/4956\/files\/17002_2a9a71c8-19e8-4927-890b-69a32a9891de.jpg?v=1784558994","url":"https:\/\/rpm-racing.com\/products\/smg-2008-gm-full-size-truck-suv-auxiliary-fuel-system","provider":"Racing Precision Motorsports","version":"1.0","type":"link"}