Shop 2 parts
Collection: Maxton Designs
Maxton Design is not only a company. We are automotive enthusiasts, so we want cars to look beautiful and their aerodynamic properties allow for an exciting and safe drive. We are a Polish producer, full of passion and professionalism. We...
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Maxton Designs Street Pro Rear Side Splitters BMW M3 G80 BMW M3 M4 | G80 G82 G83
Vendor:Maxton DesignsRegular price $134.99 USDRegular price$134.99 USDSale price $134.99 USD -
Maxton Designs Street Pro Rear Diffuser BMW M3 G80 BMW M3 M4 | G80 G82 G83
Vendor:Maxton DesignsRegular price $303.99 USDRegular price$303.99 USDSale price $303.99 USD
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Lifetime Warranty
Fitment guarantee and lifetime warranty on every TCM part.
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150+ Brands
Akrapovič, Dinan, Eventuri, KW and more in one place.
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Motorsports History
Over a decade of racing experience in DC, Maryland and Virginia area.
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One-on-One Support
Fitment questions? Talk to the people who install these parts.
Can't find a part?
We'll track it down.
Send us a message with your car and the part you need. If we can get it, we'll add it to the site and send you a special coupon for it.
Washington, DC area
Need it installed?
We're a working performance shop offering installation and maintenance. BMW is our specialty, but we service all cars.

