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013748LA01 - Turner Carbon Fiber Diffuser - G20 M340i / xDrive

Turner Carbon Fiber Diffuser - G20 M340i / xDrive

Turner Motorsport

T#: 642041 | Part#: 013748LA01

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Does not fit factory exhaust tips

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SALE: $740.69 (10% OFF)

WAS: $822.99 on 06-14-2026

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

Lifetime Replacement

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In Stock

Est. Ship Date:

on Jul 13, 2026

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Product Details

Our Turner G20 M-Sport Carbon Fiber Diffuser is a beautiful upgrade to the rear end of your M340. This diffuser features curvature designed to accentuate the G20 body lines, and is designed and engineered in-house using state of the art 3D laser scanning and CAD technology for precision OE quality fitment. The diffuser mounts to existing bumper insert mounting locations with OE hardware for a simple installation. TMS carbon fiber products are made from lightweight, hand laid epoxy resin pre-impregnated 2x2 twill weave carbon fiber cloth, and autoclave cured. Clear coated for excellent finish durability and UV resistance, and rated to withstand 100°C (212*F) continuous use, and 120°C (248*F) intermittent use.

Features & Specifications:

Designed in-house using state of the art 3d laser scanning and CAD technology for precision fitment
Mounts to existing bumper insert mounting locations with OE hardware
TMS carbon fiber products are made from lightweight, hand-laid epoxy resin pre-impregnated 2x2 twill weave carbon fiber cloth and autoclave cured
Clear coated for excellent finish durability and UV resistance
Can be painted for a color-matched look with standard body shop prep work
Rated to withstand 100°C (212*F) continuous use, and 120°C (248*F) intermittent use
Replaces BMW P/N: 51128069391

Prop 65 Warning

Cross Reference

51128069391

Product Q&A

Lifetime Replacement

This Product Is Covered By Our Lifetime Replacement Program

Products protected by our Lifetime Replacement Program are covered for as long as you own the product, no need to worry about an expiration date. Purchase your products and enjoy some worry-free motoring, knowing we've got you covered.

If you have any questions, would like to learn more or are ready to place a replacement claim, click here!

Fits These Cars

MAKE	MODEL	SUBMODEL	ENGINE	Special Fitment Notes
BMW	G20	M340i	B58 3.0L	For Pre-LCI vehicles only (production date up to 07/2022)
BMW	G20	M340i xDrive	B58 3.0L	For Pre-LCI vehicles only (production date up to 07/2022)

*The above product applications have been written by Turner Motorsport. All warranties, product application, fitment, and performance are the responsibility of Turner Motorsport. For additional information see the terms of use.