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Race Inspired Styling. Give your Non-Premium base model equipped 2015-2017 Mustang a more aggressive race inspired appearance with a MMD Rear Diffuser. This MMD Rear Diffuser is a simple and inexpensive way to alter the exterior styling of your base model Mustang.High Quality Construction. Manufactured from an OEM quality injection molded acrylonitrile butadiene styrene (ABS), this MMD Rear Diffuser was designed using the original OEM CAD data from Ford to ensure a perfect fit. ABS is an extremely strong material known for its light-weight, superior durability and impact resistance - making it perfect to withstand the hazards of daily driven vehicles.Straight Forward Installation. Installation of the MMD Rear Diffuser is simple and straight forward. However, it will require permanent modification to the stock rear bumper cover to remove the factory diffuser. Installation can be completed in about two hours.Application. This Modern Muscle Design Rear Diffuser was designed to fit 2015-2017 V6, EcoBoost and GT Mustangs equipped with the factory Base (Non-Premium) Chassis Packages only (Trim Levels: 050A/051A/100A/300A). Not intended for use on Premium Package models. Please Read. If you are having trouble determining what style bumper your Mustang is equipped with please refer to the comparison image above. 
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