![DTM Fiber Werkz M5 HM Style Rear Lower Diffuser for 1997-2003 BMW M5 [E39] (FRP/CFRP)](https://cdn11.bigcommerce.com/s-ldaxybx767/images/stencil/1280x1280/products/36290/166144/_1387296901__68804.1583269933.jpg?c=3 "DTM Fiber Werkz M5 HM Style Rear Lower Diffuser for 1997-2003 BMW M5 [E39] (FRP/CFRP)")
![DTM Fiber Werkz M5 HM Style Rear Lower Diffuser for 1997-2003 BMW M5 [E39] (FRP/CFRP)](https://cdn11.bigcommerce.com/s-ldaxybx767/images/stencil/500x659/products/36290/166145/_1387296871__25923.1583269933.jpg?c=3 "DTM Fiber Werkz M5 HM Style Rear Lower Diffuser for 1997-2003 BMW M5 [E39] (FRP/CFRP)")
![DTM Fiber Werkz M5 HM Style Rear Lower Diffuser for 1997-2003 BMW M5 [E39] (FRP/CFRP)](https://cdn11.bigcommerce.com/s-ldaxybx767/images/stencil/500x659/products/36290/166146/_1387296917__87160.1583269933.jpg?c=3 "DTM Fiber Werkz M5 HM Style Rear Lower Diffuser for 1997-2003 BMW M5 [E39] (FRP/CFRP)")
| DTM Fiber Werkz BMW E39 M5 HM Style Rear Lower Diffuser [FRP/CFRP] Change the look of your BMW E39 M5's behind with this HM Style Rear Lower Diffuser from DTM Fiber Werkz. This Rear Lower Diffuser adds a hint of racecar aggression to your M5's rear. Produced in Fiberglass Reinforced Plastic [FRP] for superior strength, durability and flexibility compared to traditional fiberglass and comes unpainted and finished in a gelcoat, ready to prep, prime and paint to match your vehicle. This Rear Lower Diffuser is also available in full carbon fiber construction (+$150.00) for greater visual impact. Vehicles shown may include moldings, grilles or an addition to the DTM Autowerkz piece. Parts such as lights, splitters, canards, paint, grilles and other accessories are not included unless specified. Key Features:
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NOTE: Like all Carbon Fiber and FRP products on the market, this product must be test fitted & prepped before installing it. Often, slight modifications are required such as trimming, sanding, filling, or smoothing the surface in order to achieve the best fitment and appearance. This is NOT an OEM product, fitment will NOT always be perfect straight out of the box. We strongly recommend having this product installed by a body shop experienced in working with AFTERMARKET body kit pieces, not a standard collision repair center that works on insurance claims. Images for this item are an accurate representation of THIS PRODUCT, properly installed by a professional installer. We also offer installation of this product at our own installation facility in southern California.
![DTM Fiber Werkz M5 Strass Style Front Lip for 1997-2003 BMW M5 [E39] (FRP/CFRP)](https://cdn11.bigcommerce.com/s-ldaxybx767/images/stencil/500x659/products/36291/166148/_1387270670__11650.1583269935.jpg?c=3 "DTM Fiber Werkz M5 Strass Style Front Lip for 1997-2003 BMW M5 [E39] (FRP/CFRP)")
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![Roof Wing Spoiler for 1997-2003 BMW M5 Touring [E39] (FRP/CFRP) by DTM Fiber Werkz](https://cdn11.bigcommerce.com/s-ldaxybx767/images/stencil/500x659/products/36293/166153/_1387298686__59131.1583269937.jpg?c=3 "Roof Wing Spoiler for 1997-2003 BMW M5 Touring [E39] (FRP/CFRP) by DTM Fiber Werkz")
![DTM Fiber Werkz HM Style Side Skirts for 1997-2003 BMW 5-Series [E39] (FRP/CFRP)](https://cdn11.bigcommerce.com/s-ldaxybx767/images/stencil/500x659/products/36289/166140/_1387289866__61599.1583269932.jpg?c=3 "DTM Fiber Werkz HM Style Side Skirts for 1997-2003 BMW 5-Series [E39] (FRP/CFRP)")