Rear Diffuser for BMW 3 Series G20 (2019+)

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Adding a more aggressive rear diffuser to your BMW can offer some performance benefits, but is primarily an aesthetic upgrade. BMWs naturally look great from the rear, why not make yours look even better?

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Turner Gloss Black ABS Diffuser - G20 M340i/xDrive

For Pre-LCI vehicles only (production date up to 07/2022)

Does not fit factory exhaust tips

T#:642120

Part#: 008653LA01

In Stock

Sale - Save 15% $ 537.99

This product was last offered at the strikethrough price on
06-14-2026

$ 457.29 USD

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Qty

Sale - Save 15%

$ 537.99

This product was last offered at the strikethrough price on
06-14-2026

$ 457.29 USD

Add to Wish List

Upgrade the exterior styling on your BMW G20 M340 with the Turner In-House engineered Gloss Black Rear Diffuser. Using all factory mounting locations, this diffuser is a direct bolt-on upgrade that can be installed in minutes. Featuring a deep profile, an aggressive fin design, this exclusive design from Turner Motorsport will be sure to turn heads!

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Turner Carbon Fiber Diffuser - G20 M340i / xDrive

For Pre-LCI vehicles only (production date up to 07/2022)

Does not fit factory exhaust tips

T#:642041

Part#: 013748LA01

In Stock

Sale - Save 10% $ 822.99

This product was last offered at the strikethrough price on
06-14-2026

$ 740.69 USD

Add to Wish List

Qty

Sale - Save 10%

$ 822.99

This product was last offered at the strikethrough price on
06-14-2026

$ 740.69 USD

Add to Wish List

Upgrade the exterior styling on your BMW G20 M340 with the Turner In-House engineered Carbon Fiber Rear Diffuser. Using all factory mounting locations, this diffuser is a direct bolt-on upgrade that can be installed in minutes. Featuring a deep profile, an aggressive fin design, and hand-laid 2x2 pre-preg carbon fiber, this exclusive design from Turner Motorsport will be sure to turn heads!

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Autotecknic Dry Carbon Extended-Fin Competition Rear Diffuser - G20 3...

For Pre-LCI vehicles only (production date up to 07/2022)

Requires M-Performance Rear Valence

T#:21275575

Part#: ATK-BM-0353

Ships in 8 Business Days

$ 500.00 USD

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$ 500.00 USD

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Carbon fiber is a staple in the performance world and has been incorporated into motorsports since the early 80s. Over time companies have taken it upon themselves to create new carbon products to add to your car that may have not been originally available. Autotecknic is no different. If you're looking for a carbon addition that has been made to the highest standards with premium materials, then Autotecknic's line of carbon additions is your one-stop shop. Add some carbon to your M-Performance rear valance! Dry carbon fiber's name comes from its manufacturing process. Dry carbon fiber is formed by using a "pre-preg" or impregnated piece of carbon materials. This piece of carbon is first placed into a mold and then into a sealed autoclave to cure properly. This method creates the least amount of waste and forms a lighter version of carbon than the “wet” method. The autoclave vacuuming process of making dry carbon means fewer pinholes and virtually no air pockets in the carbon. Dry carbon is the highest-quality version of carbon fiber products that are produced.

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Rear Diffuser for BMW 3 Series G20 (2019+)

Turner Gloss Black ABS Diffuser - G20 M340i/xDrive

Turner Carbon Fiber Diffuser - G20 M340i / xDrive

Autotecknic Dry Carbon Extended-Fin Competition Rear Diffuser - G20 3...

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