Fitment Basics
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M Sport vs Non‑M Sport: Non‑M Sport bumpers do not have an interchangeable diffuser; the diffuser is a separate trim on M Sport bumpers so most aftermarket diffusers require an M Sport bumper or replacing the bumper.
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Interchangeability Across Years: M Sport bumpers generally share the same rear bumper across LCI and pre‑LCI, so M Sport diffusers often fit both.
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Trim‑Specific Availability: Many models/trims (X‑line, base) have very few aftermarket options; most products target M Sport trims.
Practical Option
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Swap To M Sport Bumper: Replace your bumper with an M Sport bumper to open up OEM and aftermarket diffuser choices.
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Buy Aftermarket M Sport Diffusers & Modify: Use M Sport diffusers on non‑M bumpers by trimming tabs, adding screws, or minor cutting for fit — users have successfully adapted M Sport diffusers with modest modification
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Aftermarket Bumper Designs: Consider buying a full aftermarket rear bumper designed differently if you cannot use an M Sport diffuser.
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Paint / Wrap / Vinyl: If aftermarket options are scarce, painting or wrapping the OEM diffuser section black or using Plasti Dip is a common visual fix.
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Universal / Stick‑On Pieces: Some stick‑on or universal styles exist (Maxton, eBay/AliExpress sellers), but fitment and shipping cost can be issues.




