The spring case series is popular among EP touring car users.
It is a thin type that utilizes the SIKIRI series case.
The newly released spring case is suitable for GP touring cars,
It is popular among users of racing cars and drift cars.
- Hachiichi/GPT models come with a tray at the bottom for storing spare O-rings and diaphragms
- Can store extra long springs for drifting
Recommended for neatly organizing lots of springs.