{"product_id":"for-bmw-e85-e86-z4-z4m-roadster-rear-diffuser-sports-car-rear-underbody-aerodynamic-component","title":"Carbon Fiber Rear Diffuser for BMW Z4 E85 \/ E86 (2002–2008)","description":"\u003cdiv\u003e\n\u003cp\u003eUpgrade the rear underbody of your BMW Z4 with this carbon fiber rear diffuser, engineered to enhance both aerodynamic performance and aggressive styling. Designed to integrate seamlessly with the factory rear bumper, this diffuser delivers a sharper, motorsport-inspired finish while maintaining a clean OEM-plus appearance.\u003c\/p\u003e\n\u003ch4\u003eDesign \u0026amp; Aerodynamics\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePerformance-oriented rear diffuser design for improved airflow management.\u003c\/li\u003e\n\u003cli\u003eAdds depth and aggression to the rear bumper profile.\u003c\/li\u003e\n\u003cli\u003eEnhances visual width and rear-end presence.\u003c\/li\u003e\n\u003cli\u003eIdeal for street builds, track-focused setups, or performance-inspired styling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eConstruction \u0026amp; Quality\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eConstructed from lightweight carbon fiber for strength and rigidity.\u003c\/li\u003e\n\u003cli\u003eGloss carbon finish with visible twill weave for a premium appearance.\u003c\/li\u003e\n\u003cli\u003eUV-protected surface designed for long-term exterior durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eVehicle: BMW Z4\u003c\/li\u003e\n\u003cli\u003eChassis: E85 \/ E86\u003c\/li\u003e\n\u003cli\u003eModel Years: 2002–2008\u003c\/li\u003e\n\u003cli\u003ePlacement: Rear underbody\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: Carbon fiber\u003c\/li\u003e\n\u003cli\u003eFinish: Gloss carbon\u003c\/li\u003e\n\u003cli\u003eProduct Type: Rear diffuser\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation is recommended.\u003c\/li\u003e\n\u003cli\u003eTest fitting is advised prior to final mounting.\u003c\/li\u003e\n\u003cli\u003eMounting method may vary depending on vehicle configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Designed specifically for BMW Z4 E85 and E86 models. Compatibility with other generations is not guaranteed.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"K2 Industries","offers":[{"title":"Carbon Fiber","offer_id":45762165768426,"sku":"1005009896175818-CF","price":659.99,"currency_code":"USD","in_stock":true},{"title":"FRP Composite","offer_id":46058532176106,"sku":"1005009896175818-FRP","price":419.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0477\/0427\/7142\/files\/S220b62f33b2e440ba8d619df4c80aafbo.webp?v=1775823591","url":"https:\/\/www.k2-industries.com\/en-jp\/products\/for-bmw-e85-e86-z4-z4m-roadster-rear-diffuser-sports-car-rear-underbody-aerodynamic-component","provider":"K2 Industries","version":"1.0","type":"link"}