Dodge Challenger 2015–2023 Rear Diffuser – HDPE & Aluminum Belly Pan | ZL1 Addons

The ZL1 Addons Rear Diffuser for the 2015–2023 Dodge Challenger is a functional aerodynamic upgrade designed to smooth and channel airflow from underneath the vehicle. Built with an aluminum belly pan mated to an HDPE upper structure with an automotive-grade visible finish, this diffuser improves airflow from the differential to the rear of the vehicle, unlike cosmetic-only panels.

The system bolts directly to the OEM rear valance as an add-on and ships with all required mounting hardware. Hardware has been updated to support both threaded and unthreaded rear differential cross braces. If your Challenger uses an unthreaded rear crossmember, a Rivnut tool is required for proper installation.

For a cleaner, lower-profile appearance, see the Challenger Stealth Diffuser.

Vehicle Fitment

• 2015–2023 Dodge Challenger (all models)

Finish Options

Standard Aluminum:

• HDPE diffuser body and fins

• Raw aluminum mounting plate

Black Powder-Coated Aluminum:

• HDPE diffuser body and fins

• Black powder-coated aluminum mounting plate

Manufacturing Lead Time

• Standard aluminum finish: 7–10 business days

• Black powder coat finish: 14–21 business days

Material Notes

The aluminum mounting plate is a structural component and may show small surface marks from manufacturing. These marks are not visible once installed under the vehicle.

Install Guide: