Single Valve spring Set for Audi S6/RS6/S7/S8/RS7 B8 4.0l Bi-Turbo C7
We are proudly present our new single valve spring set for the V8 4.0l Bi-Turbo enginesWhat is in the box
32x single valve spring
32x retainer
32x shims
technical details
material: Oteva 70, CrSi-leg. steel, shot.peened
wire diameter: 3.8mm
spring rate: 47,80 N/mm
the retainer and shims are made of high quality steel, and the shims are hardened additional
Our spring kits are 100% made in germany from ISO registered companies!