ECU Calibration (Elantra Sport, Elantra GT Sport, N Line) Add HR9 Spark Plugs:Yes In the majority of applications

In the majority of applications the WHITELINE bushings act as a flexible bearing and must be greased at the time of assembly

helping to prevent backfiring and stalling on cars with a MAF sensor

bypass) venting for the performance-minded who just want the benefits without the sound

ship's within 24 hours

If you notice you car is pulling ignition time

ECU Calibration (Elantra Sport, Elantra GT Sport, N Line) Add HR9 Spark Plugs:Yes In the majority of applicationsIf your build is more than an OEM Turbo, Please email us at tunes@n75motorsports. ca or contact us through Facebook or Instagram before ordering, and please provide all details on your build. PLEASE NOTE; This is for file ONLY, flash tools will need to be bought or added to this. 2019 2020 Hyundai Elantra GT N Line and Hyundai Elantra Sport owners please note; You will NOT get over boost on our tune. We are aware of many tuners who are having issues