FrontWheelDrive's Finest
Forge BOV
FsZe JDM engine swapped and turbo charged pushing 15PSI
Weapon R and injen 3"piping under the hood.
2.5" turbo back with vibrant muffler tip
Injen intake
Tein springs
The coils shouldn't be that hard to replace tho. Idle wise I'd say get it checked. Probably throttle body needs cleaning or Idle control valve. Same happened to mines.