The engineers at Turner Motorsport noticed customers were happy with Turner's current Carbon Diffuser offering for G20 M340 owners, and wanted to also offer a more cost effective OEM + version. So they took it upon themselves to create something new.

Upgrade the exterior styling on your BMW G20 M340 with the Turner In-House designed and engineered Gloss Black Rear Diffuser.

This diffuser was engineered and designed in-house for aftermarket exhausts up to 4" in diameter (not compatible with factory exhaust tips) and adds a more aggressive appearance to the rear of your vehicle that matches with the factory appeal of your M340. Turner's rear diffuser will be sure to catch attention and turn heads. The diffuser is crafted of a UV stabilized ABS polymer to achieve it's deep high gloss shine and provides an aggressive and sporty style that's sure to set your vehicle apart from the rest. Features a dual tip/dual outlet design to fit aftermarket exhaust systems only and is designed to accept exhaust tips up to 4" in diameter.

Installs with no drilling, cutting, or modification of any kind required. Simply remove your currently installed valance and install the diffuser using the factory mounting locations and hardware. Make sure all tabs are lined up and lightly press the diffuser in place until the tabs click into position.

Make a bold statement and let your BMW stand out with the Turner Gloss Black Diffuser!

Features & Specifications:​

• Designed and engineered in-house using state of the art 3D laser scanning and CAD technology for precision fitment

• Mimics the lower section of the bumper & OE diffuser lines to accentuate OEM features

• Houses 4.0" exhaust tips; compatible with aftermarket exhaust

• Mounts to OE clip locations and OE holes on the outer edges of the bumper

• Made from lightweight, vacuum formed UV-stabilized gloss black ABS polymer