FIAT ABARTH 1.4 T-JET - ALFA ROMEO 1.4 T-JET

Double valve spring for:
- ALFA ROMEO MITO 1.4 T-JET 
- FIAT ABARTH 1.4 T-JET 
High recommended for high revs and high performance engines. 

Kit include 32 valves springs + 16 spring seats. 
Retainer must be use OEM. 

Installed spring: 37,5mm
Valve lift: 12mm
Hardeness: 80kp