Ferrari SF90 Stradale / Spider | Prepreg Dry Carbon Fiber Rear Diffuser

Ferrari SF90 Stradale/Spider (2019+) Prepreg Dry Carbon Fiber Rear Diffuser

Engineered for Ferrari SF90 Stradale and SF90 Spider (2019+) owners, this Prepreg (Dry) Carbon Fiber Rear Diffuser elevates the rear aerodynamics of Ferrari's first road-legal PHEV hypercar. Autoclave-cured by leading manufacturers around the world and quality-controlled by BYC Performance, this Ferrari SF90 carbon rear diffuser bolts directly to OEM mounting points.

The SF90 Stradale combines a 4.0L V8 twin-turbo with three electric motors for 986 hp combined output, with mid-engine AWD drivetrain, Ferrari's first road-legal PHEV and first road AWD (electric motors drive the front axle). 0-100 km/h: 2.5s, top speed: 340 km/h. This diffuser is built specifically for the SF90's unique PHEV mid-engine rear geometry and is NOT compatible with other Ferrari models.

Key Features

• Prepreg (Dry) Carbon Technology: Autoclave-cured under high heat and pressure, homogeneous resin, a more consistent weave.
• SF90-Specific Geometry: Tailored to the PHEV mid-engine rear bumper; aggressive diffuser channels.
• Race-Grade Strength: Very high strength for its weight.
• Aerodynamic Performance: SF90 LMH-derived aero DNA; increases downforce at high speed.
• 2x2 Twill Carbon Weave: Authentic pattern under high-gloss UV-protective clear coat.
• Direct OEM Fit: Plug & play, factory mounting points.
• UV & Chemical Protection: Long-life clear coat.

Prepreg (Dry) Carbon vs. Wet Carbon

• Autoclave high heat and pressure → a more consistent weave
• A controlled resin ratio → lighter and stronger
• The production method widely chosen in motorsport
• Minimal UV fading

Installation Notes

1. Raise the vehicle and remove rear bumper underbody screws.
2. Detach the OEM diffuser from clips and bolts.
3. Test-fit the carbon diffuser for alignment.
4. Secure with supplied hardware to the manufacturer's recommended torque.
5. Verify exhaust tip alignment.

Care & Maintenance

Wash with pH-neutral shampoo. Apply carbon-safe sealant every 6 months. Keep pressure washer at 30 cm distance.

FAQ

Compatible with other Ferrari models?
No. The SF90 uses a unique PHEV mid-engine chassis; not compatible with 488, F8, 296, or Roma.

Fits SF90 Spider?
Yes. Coupé and Spider share the same rear bumper and diffuser geometry.

Fits SF90 XX Stradale?
No. The XX factory wide-body aero kit has different diffuser geometry.

Will rain damage it?
No. Autoclave-cured prepreg carbon is waterproof.

Shipping time?
In-stock items ship within 1-3 business days via partner couriers. Parts sourced to order are delivered within 30 days of the order date at the latest.

Warranty?
Manufacturing defects are covered by a 24-month BYC warranty, in addition to your legal rights.

Why BYC Performance?

BYC Performance is a Turkey-based performance tuning specialist sourcing premium carbon fiber parts from leading manufacturers around the world. Our catalog includes Ferrari SF90 carbon parts, Ferrari carbon diffusers, Ferrari carbon tail spoilers, and many more.