www.foreinnovations.com Toggle Search Account Checkout Cart CHRYSLER Challenger, Charger, Magnum, 300C Cherokee SRT-8 WK1 (2006-2010) Cherokee SRT-8 WK2 (2011+) Cherokee Trackhawk (2018+) Durango SRT Hellcat (2021 Only) Durango SRT/RT (2011+) Ram TRX Viper (2013+) FORD F-150 GT350/R (2015-2020) GT500 Mustang GT SVT Cobra & Mach1 (1999-2004) SVT Lightning (1999-2004) GM ATS-V (2016-2019) Camaro (2016+) Camaro (2010-2015) Caprice PPV (2009-2017) Commodore Corvette C7 (2014-2019) Corvette C5, C6 (2003-2013) CTS-V (2016-2019) CTS-V (2009-2015) G8 Maloo SS (2014-2017) IMPORTS Gallardo Golf Mk5 GT-R R35 WRX (2008-2014) UNIVERSAL PARTS Fuel Pressure Regulators Fuel Filters Fuel Pumps Fittings, Y-blocks, Adapters, Gauges Hose and Hose Ends Nitrous Fittings & Accessories Boost / Vacuum Accessories Electrical Replacement / Service Items Shirts and Stickers Search site Submit search FAQ BLOG CAREERS TRIPLE UPGRADE PROGRAM WARRANTY DEALERS Nav Menu 5 Nav Menu 6 Nav Menu 7 Nav Menu 8 Home > Spine 91-4 Starting Price: $190.00 Availability: Usually Ships in 1-2 Business Days Part Number: 91-004 Qty: