Replacement spring for the mechanical valve of the Record Monza exhaust.
Fits the first series terminals, not the active one.
Spring made of harmonic steel wire identical to the one used on the Abarth Record Monza
Replacement spring in case:
- the original spring no longer functions correctly
- you want to change the performance of the original spring (stretching it to open the valve more easily) but do not want to take risks in case of revision
It can be changed with a pair of pliers
