OEM S54 plastic plenums are fairly robust usually last indefinitely if you leave the lower mount deleted

Widely known as being original equipment for M3 GT and M3 Lightweight

they are ready to ship

Part Number: 51-13-2-251-378

Ferrari Purosangue - Valved Exhaust + Straight MidSilencer Replacement (OE Actuators) Cap OEM S54 plastic plenums areDemand the Best. Demand Capristo. Capristo Exhaust Systems are engineered and manufactured exclusively at our factory in Sundern, Germany, utilizing advanced 3D laser scanning, CAD design, digital prototyping, and CNC bending milling. Technical Highlights: 100% Made in Sundern, Germany Highest Grade T309 (1. 4828) Stainless Steel; similar resonance properties to Inconel, notably used in F1 Proprietary Valves Manufactured by Capristo Patented