i've spoken to alex at TTS about the ECS race valve being a re-labelled N75-H. he reckons that it is a H valve but has been modified somehow by ECS. i guess the only way to find out is to do a comparison test between the two. i've had mine on for over a year now with no problems at all.
where did you get the race valve j3rv x what map do you have was it mapped to your old n75 what was that?
My cupra is hitting 20psi and then holding at 10-11-12psi... Is this right?
Mods below..