Hey idk if im just paranoid but after a track day i have the feeling that the car has a weird idle. It sounds a bit like a rotary or Subaru. If i blip the throttle it sounds a bit like fuel igniting in the manifold.
It feels strong and pulls well tho so it doesn't seem like a missfire
I just have an Apexi intake and exhaust system, combined with a blitz sequential boost controller. Running max 0.7 Bar