Stage 4 Tuning
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RSI c6Handcrafted in Italy

Sides Skirts in Carbon Fiber - BMW 4 Series G22/G23 430i and M440i

$1,041.00Side Skirts
4 Series / M440i (G22/G23/G26)
Trasparent Paint
Material certification for TÜV

Direct Stage 4 Tuning × RSI c6 partnership

Made to order in Italy

Each part is produced to order by RSI c6 in Italy; typical lead time 4–8 weeks.

The piece

Details & finish.

BMWSide SkirtsRSI c6 · Italy

Carbon fiber side skirts for BMW 4 Series G22/G23 (430i and M440i). Precision-engineered for exact fitment, they reduce drag and enhance aerodynamics while delivering a race-inspired look.

Lightweight yet durable construction improves performance and sharpens your vehicle's profile.

Each piece is made to order. Finish, weave, and configuration are confirmed before production begins; typical lead time is 4–8 weeks.
Continue the build

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