If you're looking for a replacement filter source for your 10-14 GT500 factory intake, JLT just announced this today.
JLT Factory replacement air filter 2010-14 GT500 & 2015-18 GT350 [SBAF-S557] - $69.00 : JLT PERFORMANCE, Home of the JLT TRUE COLD AIR KIT
JLT Factory replacement air filter 2010-14 GT500 & 2015-18 GT350 [SBAF-S557] - $69.00 : JLT PERFORMANCE, Home of the JLT TRUE COLD AIR KIT