BMW E36 320 - 325 -328 M52 - E46 M54

Single valve spring + retainers for:
- BMW E36 320- 325 -328 6-cyl engine M52 (single-vanos) 
- BMW E46 330i engine M54 (double vanos).
High recommended for high revs and high performance engines. 

Kit include 24 valves springs + 24 valve springs retainers. 

Installed spring: 37mm
Valve lift: 12mm
Hardeness: 78 kp