{"product_id":"black-diamond-o-s-int-valve-evo-twin-cam-84-04","title":"BLACK DIAMOND O\/S INT. VALVE EVO\/TWIN CAM `84-04","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eKPMI Black Diamond O\/S Intake Valve – EVO\/Twin Cam ’84–’04\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eEngineered for performance \u0026amp; durability:\u003c\/strong\u003e The KPMI Black Diamond Oversized (O\/S) intake valve is a direct-fit upgrade for Mitsubishi 4G63\/Evo and Twin Cam engines from 1984–2004. Precision-machined for consistent seating and long service life, this valve improves airflow and throttle response under high-performance conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Mitsubishi EVO \u0026amp; Twin Cam engines (1984–2004)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Oversized intake (O\/S) valve — Black Diamond series\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBenefits:\u003c\/strong\u003e Enhanced airflow, improved combustion efficiency, better high-RPM performance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e High-strength alloy with heat-treated stem and polished face for reduced wear\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Direct replacement for stock valves; ideal for rebuilt heads and performance builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eChoose KPMI Black Diamond valves when you need reliable, race-ready components that maintain OEM fitment while delivering measurable gains. Perfect for street performance, track use, and engine rebuilds seeking upgraded intake flow and durability.\u003c\/p\u003e","brand":"KPMI","offers":[{"title":"Default Title","offer_id":52243945619774,"sku":"191-17034-51s","price":47.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0373\/5614\/files\/cdc7-670e9ae2c5af4.png?v=1758396990","url":"https:\/\/thed-zone.myshopify.com\/products\/black-diamond-o-s-int-valve-evo-twin-cam-84-04","provider":"thed.zone","version":"1.0","type":"link"}