STILLEN 2014-2017 Infiniti Q50 Rear Diffuser [Unpainted] - KB11222

Transform the rear end of your Infiniti Q50 with the STILLEN Rear Diffuser, designed to inject aggressive, race-inspired styling while maintaining OEM-level fitment and daily-driver durability. Engineered specifically for the 2014–2017 Q50 sedan, this diffuser enhances the factory bumper with a bold aerodynamic presence that completely changes the vehicle’s rear profile.

Constructed from high-strength polyurethane, this diffuser is built to withstand the realities of street driving while delivering a premium, performance-focused appearance. The aerodynamic strake design draws inspiration from motorsports, creating a sophisticated yet aggressive look that stands out without appearing overdone.

Oversized exhaust cutouts are purposefully designed to accentuate and showcase your exhaust system, making it the perfect visual companion to a STILLEN Cat-Back Exhaust. Installation is straightforward and completely reversible—no cutting, drilling, or permanent modification to the bumper is required. OEM-grade 3M automotive tape is pre-installed for secure mounting and clean fitment.

This version is supplied RAW and UNPAINTED, making it ideal for customers who want a custom paint finish to match or contrast their Q50’s exterior.

Designed, manufactured, and quality-inspected in-house at STILLEN, this diffuser meets the highest standards of fit, finish, and durability—and is backed by a Limited Lifetime Warranty.

Key Features & Benefits

• Enhances the Rear-End Appearance of the Infiniti Q50
• Race-Car Inspired Aerodynamic Design with Aggressive Strakes
• Durable Polyurethane Construction for Daily-Driven Street Use
• Oversized Exhaust Cutouts Highlight Performance Exhaust Systems
• Perfect Complement to STILLEN Cat-Back Exhausts
• OEM-Style Installation with Pre-Installed 3M Automotive Tape
• No Cutting or Permanent Modification Required
• Unpainted – Ready for Prep, Prime, and Custom Paint
• Designed & Manufactured In-House at STILLEN
• Limited Lifetime Warranty

Vehicle Fitment

• 2014–2017 Infiniti Q50 (Sedan)

Overview

If your Infiniti Q50’s rear end feels too subtle or understated, the STILLEN Rear Diffuser delivers the visual aggression it’s been missing. Its motorsport-inspired design adds depth, character, and performance flair—without sacrificing practicality or fitment.

Supplied unpainted for full customization, this diffuser is ideal for enthusiasts who want to personalize their build while maintaining OEM-quality construction and reliability.

The standard shipping rate applies to orders within the continental United States. If you intend to place an order outside of the continental US, please reach out to support@x-ph.com for assistance.