Please note your car model and manufacturered year when place the order! Model: FH Manual full acceleration FA Automatic full acceleration HH Manually half acceleration HR Automatic half acceleration EC Economy model NOR Original car model (FH, FA, HH, HR and EC model all have level 1-9 adjustable ) Applicable models compatible for Hyundai series Elantra 2007-2010 1.6 DIESEL I20 2009-2012 1.4 L DIESEL(75 HP)&1.6 L DIESEL I20 2013- 1.1 L DIESEL&1.4 LDIESEL I30(FD) 2008-2012 1.6&2.0DIESEL ENGINES I30(FD) 2011-2012 1.4&1.6 PETROL ENGINES Improved electronic throttle response speed Impore vehicle throttle sensitivity Reduce engine deposits Plug and play, non-destructive installation Save fuel 3~8%, 40~45% performance boost acceleration Car throttle acceleration compatible for Hyundai Elantra 1.6L I20 I30 Brand July King Manufacturer TROS Item model number JKTS-823 Manufacturer Part Number JKTS-823 Is Discontinued By Manufacturer No