BMW M3/M4 OEM Style Replacement Rear Side Diffusers BMW it refers to the method

it refers to the method used to make the carbon fibre parts

PP is resistant to various chemical solvents

Vorsteiner has really hit the mark with its unique design and premium finish

- Pair of MHC+ SK1 side skirts in pre-preg carbon fibre

FRP (Fiber Reinforced Polymer):

BMW M3/M4 OEM Style Replacement Rear Side Diffusers BMW it refers to the methodMHC+ BMW G80 G81 M3 OEM Style Replacement Rear Side Diffusers In Pre Preg Carbon Fibre replace the factory gloss black trim for a more premium look. These diffusers are a 1: 1 copy of the standard items so that you can enjoy OEM styling in the highest quality carbon fibre. Why choose pre preg carbon fibre? Unlike normal carbon fibre, pre preg carbon is reinforced for increased strength and durability. It can also be an astonishing 70% lighter than