Hyundai Veloster N ECU Calibration Stage:2 for louder venting sound you

for louder venting sound you can replace the outlets with 2 standard trumpets (6110) or 2 whistling trumpets (5702)

Revisions can be added later

and Veloster N with EN Turbocharger swaps as 7000 - 7200 RPM is needed as these cars have a bigger turbo which make boost in higher RPM range as shown in our dyno testing

Varex rear Muffler

Compare this to pumps that use a pump "sleeve"

Hyundai Veloster N ECU Calibration Stage:2 for louder venting sound youTune Features Engine Fuel Delivery The N series engine's has fuel delivery not set for high boost, if tuners do not account for this the ECU will pull power and cut fuel under high demands. We optimize these maps for the HPFP and fuel delivery to engine to prevent this cut from happening. N Mode pop enhancement. (Optional) We change the pop sound through the ECU. The OEM Hyundai pop sound becomes far more aggressive. Only in N mode like OEM.