Stage 4 Tuning
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RSI c6Handcrafted in Italy

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

$690.00Rear Diffuser
M3 (G80/G81)M4 (G82/G83)
Trasparent paint
Option
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

Enhance your BMW M3/M4 G8X rear end with this carbon fiber extractor. Engineered for aerodynamic efficiency, it reduces drag and improves high-speed stability while delivering an aggressive, track-focused aesthetic.

Lightweight carbon construction combines visual impact with functional 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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