Gain Up to 35HP. The Granatelli Coil-on-Plug upgrade kit is the perfect addition to your modified S197 'Stang, especially if you have a forced induction setup. Your weak OEM coils don't deliver a strong enough spark to your plugs to ensure you're getting the most power possible from your engine, especially once you've added high performance parts. Delivering a strong spark is key to getting the most from your mods. This kit adds up to 15HP on naturally aspirated Mustangs and an impressive 35HP on turbo or supercharger setups.
Up to 400% More Voltage. Your stock coils deliver 20,000 volts, versus the GMS coils which are rated at 60,000 volts.
Complete Kit. This complete kit includes all hardware necessary for installation including the 8 coil packs and stainless snap lock plug connectors.
Easy Installation. Upgrading your coils is easy with this kit, which is OBD-II safe and a direct replacement for your OEM setup. You'll enjoy more power, improved throttle response, and even better fuel economy with an hour or less install time using basic hand tools from this GMS Coil Plug Kit.
Application. The Granatelli Coil-on-plug upgrade kit is designed for 2005-2010 three valve 4.6L Mustangs, including the 2005-2010 Mustang GT and the 2008-2009 Bullitt.