FI-1 Pre-Preg Carbon Rear Diffuser Audi RS6 & RS7 C8 FI-1 Pre-preg Carbon Fibre Rear Diffuser by FORM (2020+)
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Audi RS6 & RS7 C8 FI-1 Pre-preg Carbon Fibre Rear Diffuser by FORM (2020+)
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The FORM FI-1 Pre-preg Carbon Fibre Rear Diffuser is an exclusive design created by Form Industries for the Audi RS6 C8 Avant and RS7 C8 Sportback, engineered to replace the factory lower rear bumper insert with a purpose-built carbon fibre performance piece. The kit includes a pair of integrated rear winglets — one either side — that extend the diffuser's visual and aerodynamic effect along the lower rear quarter. The images in this listing show the prototype kit that AUTOID fitted to a customer vehicle and returned to Form with structured feedback on fitment, integration with the factory quad exhaust arrangement, and surface finish — ensuring the production piece meets the standard demanded by the car. Autoclave-cured pre-preg construction gives the diffuser and winglets the structural rigidity and flawless gloss finish these cars demand.
Key Features
- Exclusively designed by Form Industries for the Audi RS6 and RS7 C8 — prototype fitted and reviewed at AUTOID before production
- Includes rear diffuser and a pair of carbon fibre rear winglets — one per side
- Pre-preg carbon fibre throughout, autoclave-cured for maximum structural integrity and finish quality
- 2×2 twill weave carbon fibre with UV-stable high-gloss clear coat lacquer
- Designed around the factory quad exhaust outlets for seamless visual integration
- Direct fit to factory rear bumper mounting points — no permanent modification required
- Pairs with the full FORM FI-1 aero kit for a cohesive carbon finish front to rear
Compatible Models
- Audi RS6 Avant (2020+, C8)
- Audi RS7 Sportback (2020+, C8)
What's in the Box
- Carbon fibre rear diffuser ×1
- Carbon fibre rear winglets ×2 (left and right)
- Stainless steel fixing hardware
How to Install
No install video is available for this product yet. For installation guidance, technical questions, or workshop recommendations, contact the AUTOID team.
About FORM Industries
Finance
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Why buy from AUTOID
AUTOID specialises in aftermarket styling and Carbon Fibre upgrades for BMW M, Audi and VW. From front splitters and rear diffusers to intakes, exhausts and interior accessories, we choose every part for its fit, finish and materials. Trusted by thousands of enthusiasts worldwide and rated 4.85/5, we back every order with expert advice and worldwide shipping.
