Maserati Quattroporte S/S Q4 Carbon Fiber Rear Diffuser, 2017–2019

Carbon Fiber Rear Bumper Diffuser for Maserati Quattroporte

Add a gloss carbon-fiber detail to the rear bumper of your Quattroporte S or S Q4. The source describes this as a replacement for the factory plastic diffuser, not a complete bumper or exhaust assembly.

Vehicle fitment

• Maserati Quattroporte QP S and S Q4.
• Body style: 4-door sedan.
• Model years: 2017, 2018 and 2019.
• Not for GTS or Trofeo models.

Confirm the exact rear bumper, original diffuser and exhaust layout before ordering. Diesel compatibility is not established by the supplied fitment specification. Other years, configurations and modified bumpers require separate verification.

Important sensor warning

The original listing warns that installation may obstruct a rear door/tailgate sensor function if equipped. It does not identify the exact sensor system. Confirm the location and required clearance of any rear sensor equipment before purchase and check its operation after installation.

Material and finish

• Genuine 3×3 weave carbon fiber, according to the original specification.
• Glossy surface with a double-layer UV-protected clear coating.
• Dry-carbon construction and a specific curing process are not specified.

A permanent no-fading or no-discoloration guarantee is not established by the coating description.

Installation: confirm the fasteners

The source describes removal of the factory diffuser and installation of this replacement. However, the introductory instructions mention included self-tapping screws, while the feature list says to reuse factory screws. Confirm the required fasteners and supplied hardware before proceeding.

Test-fit and check mounting points, exhaust clearance and sensor access before fastening. Although the source describes installation without modification, the conflicting screw instructions do not establish a no-drill installation. Professional installation is recommended. Do not force the diffuser into place if the bumper or mounting profile does not match.

Package details

The listing describes a replacement rear diffuser. Exact piece count, dimensions and confirmed hardware quantities are not specified; verify package contents and whether original fasteners are reused before installation.

Frequently asked questions

Does it fit GTS or Trofeo?
No. The supplied fitment explicitly excludes those models.

Does it fit a Diesel Quattroporte?
Diesel fitment is not established by the public specification. Product tags alone are not confirmation.

Are original screws reused?
The source mentions both factory screws and included self-tapping screws. Confirm the correct mounting instructions for the supplied part.

Does it improve aerodynamic performance?
No measured aerodynamic, handling or fuel-economy results are provided, so those effects are not promised.