{"product_id":"haw-psm-style-dry-carbon-fiber-rear-diffuser-for-bmw-m3-g80-g81-m4-g82-g83","title":"HAW PSM Style Dry Carbon Fiber Rear Diffuser for BMW M3 G80 \/ G81 M4 G82 \/ G83","description":"\u003ch2\u003ePrepreg Dry Carbon Construction\u003c\/h2\u003e\n\u003cp\u003eEvery HAW carbon fibre product is manufactured using a prepreg dry carbon process. The carbon fibre fabric is autoclave-cured under high temperature and pressure, with resin content precisely controlled between 37% and 42%. This ensures each piece achieves exceptional structural rigidity while remaining significantly lighter than wet carbon alternatives.\u003c\/p\u003e\n\u003cp\u003eWe use Toray standard-grade 3K twill-weave carbon fibre tow to produce our fabric. 3K means each carbon bundle contains approximately 3,000 individual filaments. The twill weave creates the classic diagonal texture — one that shifts subtly under changing light, understated yet impossible to ignore.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eHAW PSM Style Dry Carbon Fiber Rear Diffuser – BMW M3 G80 G81 \/ M4 G82 G83\u003c\/h2\u003e\n\u003cp\u003eComplete the rear end with purpose. The HAW PSM Style dry carbon fiber rear diffuser is inspired by PSM's signature aggressive diffuser design, engineered to enhance both aerodynamic performance and visual impact on your BMW M3 or M4. Precision-crafted in prepreg dry carbon for a piece that performs as aggressively as it looks.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Carbon Fiber Construction\u003c\/strong\u003e – Autoclave-cured prepreg carbon, lighter and stiffer than wet carbon alternatives, finished in a premium 3K twill weave\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePSM Style Design\u003c\/strong\u003e – Inspired by PSM's distinctive diffuser styling, with aggressive fins and sharp lines that complement the M rear bumper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAerodynamic Benefit\u003c\/strong\u003e – Improves rear airflow management for a cleaner, more planted look at speed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect OEM Fitment\u003c\/strong\u003e – Designed specifically for G80 \/ G81 \/ G82 \/ G83 chassis; no cutting or modification required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUV-Resistant Clear Coat\u003c\/strong\u003e – Protects the carbon weave from yellowing and fading over time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignificant Weight Reduction\u003c\/strong\u003e – Lighter than the factory plastic rear diffuser\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailable Finishes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGloss Dry Carbon\u003c\/strong\u003e – High-gloss clear coat for a deep, reflective finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatte Dry Carbon\u003c\/strong\u003e – Satin clear coat for a subtle, stealth look\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBMW M3 Sedan (G80)\u003c\/li\u003e\n\u003cli\u003eBMW M3 Touring (G81)\u003c\/li\u003e\n\u003cli\u003eBMW M4 Coupe (G82)\u003c\/li\u003e\n\u003cli\u003eBMW M4 Convertible (G83)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x HAW PSM Style dry carbon fiber rear diffuser\u003c\/li\u003e\n\u003cli\u003eFitting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eProfessional installation recommended. Please verify fitment with your chassis code before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Hollow Aero Works","offers":[{"title":"Gloss Dry Carbon","offer_id":53886120591726,"sku":null,"price":2499.0,"currency_code":"AUD","in_stock":true},{"title":"Matte Dry Carbon","offer_id":53886120624494,"sku":null,"price":2699.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/6154\/4814\/files\/Screenshot_2026-06-08_at_10.42.17_pm.png?v=1780923107","url":"https:\/\/hollowaeroworks.com.au\/products\/haw-psm-style-dry-carbon-fiber-rear-diffuser-for-bmw-m3-g80-g81-m4-g82-g83","provider":"Hollow Aero Works","version":"1.0","type":"link"}