{"product_id":"yamaha-21386","title":"GYTR Ported Cylinder Head Assembly","description":"\u003cdiv\u003eThe GYTR Performance Ported Head Kit increases horsepower and torque across the entire power curve.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eDeveloped and used by Yamaha race teams, the kit offers professional-level performance while maintaining strict Yamaha durability standards. The head comes fully assembled and ready to install. Yamaha has developed two specific GYTR Yamaha Power Tuner maps to optimize performance.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cul\u003e\n\u003cli\u003eUsed by Yamaha race teams\u003c\/li\u003e\n\u003cli\u003eIncreases horsepower and torque across the entire power curve\u003c\/li\u003e\n\u003cli\u003eFully assembled, adjusted and ready to install\u003c\/li\u003e\n\u003cli\u003eDesigned for AMA-approved fuels (T4, Pro6)\u003c\/li\u003e\n\u003cli\u003e15.4:1 Compression Ratio with GYTR High Compression Piston Kit\u003c\/li\u003e\n\u003cli\u003eMachined GYTR logo\u003c\/li\u003e\n\u003cli\u003eHighly recommend use with the GYTR High Compression Piston Kit, sold separately\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yamaha","offers":[{"title":"Default","offer_id":53802403856659,"sku":"BMF-E11B0-V0","price":4997.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/9851\/8035\/files\/BMF-E11B0-V0_A_884425f4-f423-48e2-ac24-6328ad9a329c.jpg?v=1770790675","url":"https:\/\/www.procycles.com.au\/products\/yamaha-21386","provider":"Procycles Sydney","version":"1.0","type":"link"}