Stage 4 Tuning
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RSI c6Handcrafted in Italy

Winglets/Rear Corners in Carbon Fiber - BMW M3 G80 G81/M4 G82 G83

$690.00Rear Diffuser
M3 (G80/G81)M4 (G82/G83)
BMW Model
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.

BMWRear DiffuserRSI c6 · Italy

Elevate your M3 G80/G81 or M4 G82/G83 with precision-engineered carbon fiber winglets that define the rear quarter profile. These lightweight corner pieces deliver aggressive styling while maintaining OEM fitment integrity.

Crafted from premium carbon fiber with a glossy finish, they enhance aerodynamic presence and reduce unsprung weight. Direct bolt-on installation requires no modifications. Perfect for track enthusiasts and collectors seeking authentic M Performance aesthetics with measurable performance gains.

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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