STILLEN 2016-2018 Nissan Altima Rear Diffuser [Unpainted] - KB13158

Transform the rear of your 2016–2018 Nissan Altima (L33) with the STILLEN Unpainted Rear Diffuser, designed to give the factory rear valance a sporty, race-inspired appearance. This diffuser enhances the lower bumper aesthetic, highlights the factory exhaust cutouts, and pairs perfectly with aftermarket exhausts or additional STILLEN body modifications.

Made from durable polyurethane, this diffuser comes RAW and unpainted, ready to be prepped, primed, and painted to match your vehicle. It installs without cutting or modification to the bumper, with pre-installed 3M automotive tape and included screws for a secure fit.

Key Features & Benefits

• Race-Inspired Styling – Adds aggressive, track-ready looks to the rear bumper
• Enhanced Rear Aesthetics – Highlights exhaust cutouts and complements dual-tip exhaust setups
• Improved Airflow – Helps channel air from underneath the car, supporting performance and style
• Durable Polyurethane Construction – Flexible, resilient, and long-lasting
• No Cutting or Modifications Required – Easy, removable installation
• Pre-Installed 3M Automotive Tape – Ensures secure and fast installation
• Vehicle-Specific Fit – Designed specifically for 2016–2018 Altima L33
• Limited Lifetime Warranty – Confidence in quality and durability

Vehicle Fitment

Compatible with:

• 2016-2018 Nissan Altima

Why Choose STILLEN KB13158?

• Gives your Altima a unique, aggressive stance at the rear
• Perfect complement to STILLEN front splitters, side skirts, and roof wings
• Enhances both looks and functionality, controlling airflow under the vehicle
• Designed and precision-molded in-house at STILLEN for exact OE-like fit
• Backed by STILLEN’s limited lifetime warranty