{"product_id":"skunk2-gr-supra-b58-ultra-series-stage-1-camshafts","title":"Skunk2 GR Supra B58 Ultra Series Stage 1 Camshafts","description":"\u003ch4\u003eOverview\u003c\/h4\u003e\n\u003cp style=\"margin:1em 0\"\u003eThe \u003cstrong\u003eSkunk2 Ultra Series Stage 1 Camshafts\u003c\/strong\u003e are a high-performance camshaft upgrade engineered for the \u003cstrong\u003eBMW B58 3.0L turbocharged inline-6 engine\u003c\/strong\u003e, as found in the \u003cstrong\u003eToyota GR Supra (A90\/MK5)\u003c\/strong\u003e and BMW Z4 (G29). Designed to increase airflow efficiency and broaden the usable powerband, these camshafts deliver substantial gains while retaining factory drivability systems.\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"margin:1em 0\"\u003eSkunk2’s Ultra Series camshafts are developed using advanced valvetrain dynamics modeling and motorsports experience. The result is a camshaft set that balances aggressive performance with OEM-level refinement, making it a strong choice for enthusiasts building a higher-output GR Supra while retaining factory systems.\u003c\/p\u003e\n\u003cp style=\"margin:1em 0\"\u003eThese Stage 1 camshafts are ideal for \u003cstrong\u003estreet, track, and high-boost performance builds\u003c\/strong\u003e seeking meaningful power gains without sacrificing daily drivability. When properly tuned, they can significantly improve engine efficiency and unlock additional horsepower and torque potential beyond stock cam limitations.\u003c\/p\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eBillet Alloy Steel Construction:\u003c\/strong\u003e Manufactured from high-strength \u003cstrong\u003e8660 billet steel blanks\u003c\/strong\u003e, rifle drilled, induction hardened, and precision CNC ground for exceptional durability and consistency under high load and high RPM conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eUltra Series Lobe Profiles:\u003c\/strong\u003e Optimized cam profiles increase valve lift and duration to improve airflow, efficiency, and power production throughout the mid- to upper-RPM range.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eRetains OEM Systems:\u003c\/strong\u003e Fully compatible with factory \u003cstrong\u003eDouble VANOS\u003c\/strong\u003e and \u003cstrong\u003eValvetronic\u003c\/strong\u003e, maintaining smooth idle quality and street-friendly drivability when properly tuned.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eExpanded Powerband:\u003c\/strong\u003e Designed to deliver stronger and more consistent power from approximately \u003cstrong\u003e3,500 RPM to redline\u003c\/strong\u003e, rather than shifting power only to peak RPM.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eBoost-Friendly Design:\u003c\/strong\u003e Well-suited for B58 builds, with documented efficiency gains under higher boost levels when paired with proper supporting modifications.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eIntake Valve Lift:\u003c\/strong\u003e Approx. 0.410in (10.41mm)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eExhaust Valve Lift:\u003c\/strong\u003e Approx. 0.425in (10.79mm)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eDuration @ 0.050in:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003eIntake: 227°\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003eExhaust: 245°\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eDuration @ 0.039in:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003eIntake: 234°\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003eExhaust: 252°\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eAdvertised Duration (@ 0.004in):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003eIntake: 277°\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003eExhaust: 295°\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003e2020+ GR Supra w\/B58 3.0L\u003c\/li\u003e\n\u003cli\u003eBMW Z4 (G29)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cem\u003e\u003cstrong\u003e**Note: ECU tuning is strongly recommended. Upgraded valve springs and retainers are advised for long-term reliability with increased lift and RPM. Actual results will vary based on engine condition, other parts selection, and tuning abilities.**\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cem\u003e\u003cstrong\u003e**Not CARB Legal**\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Skunk2","offers":[{"title":"No","offer_id":62739100565644,"sku":"skk305-14-1000","price":1467.8,"currency_code":"USD","in_stock":true},{"title":"Yes Add Skunk2 High Lift Valve Springs \u0026 Titanium Retainer Set? +$965.99","offer_id":62739100598412,"sku":"skk305-14-1001, skk313-14-1000","price":2433.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0789\/3300\/0332\/files\/Skunk2_GR_Supra_B58_Ultra_Series_Stage_1_Camshafts1.jpg?v=1791951039","url":"https:\/\/vpmotorworks.com\/products\/skunk2-gr-supra-b58-ultra-series-stage-1-camshafts","provider":"VP Motorworks","version":"1.0","type":"link"}