Bilstein B6 Shock Absorber Rear - BMW Z3M Roadster | Coupe 6 Series (F12 / F13) Carried out with hours of

Carried out with hours of dyno testing

Many claims to 15-30hp+ have been made over the years

It is well known that the Primary cats are a major restriction point on the E9X M3

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and attempts to expand on what's already there

Bilstein B6 Shock Absorber Rear - BMW Z3M Roadster | Coupe 6 Series (F12 / F13) Carried out with hours ofThe BILSTEIN B6 is ideal gas pressure shock absorber for those who refuse to compromise between performance or comfort. Better vehicle dynamics in any situation. For shock absorbers heavy loads or trailering are a big challenge. Built to OE quality standards, the BILSTEIN B6 delivers increased performance when demands are high. Even without lowering you will get better vehicle dynamics for a comfortable street performance in town and on the highway.