The STM Spark Plug Gapping Tool allows for easy handling of your spark plug and gauge for for a smooth, controlled and precise gap. So you can stop banging your plugs on random hard surfaces! Please confirm the thread size for your plugs before purchase. Vehicle Fitment: • For 12mm or 14mm spark plug threads • See fitments below Features: • USA-made • Billet aluminum • Super easy to use tool 12mm Gapper Tool for: Mitsubishi Lancer Evolution X Nissan R35 GT-R Nissan 350Z 2007 - 2009 Nissan 370Z 2009 - 2016 Infinity G35 11/2006 - 2008 Infinity G37 2008 - 2013 Subaru BRZ Scion FR-S Subaru 2015+ FA20 WRX 14mm Gapper Tool for: Mitsubishi Lancer Evolution 1/2/3/4/5/6/7/8/9 Mitsubishi 1G/2G DSM (Eclipse/Talon/Laser) Mitsubishi 3000GT Dodge Stealth Subaru STi 2004-2018 Subaru WRX 2002 - 2014 Nissan 350Z 2003 - 2006 Infinity G35 2003 - 10/2006 Ford Focus ST 2013 - 2017 Ford Focus RS 2016 - 2017 Lamborghini Huracán Lamborghini Gallardo Audi R8 V8/V10