{"product_id":"121ci-to-135ci-engine-kit","title":"121ci to 135ci Engine Kit","description":"This 121ci to 135ci upgrade kit delivers instant, arm-stretching torque across the entire rpm range, with a focus on wide-open throttle and high-end RPMs for thrilling acceleration.\n\nThe kit includes an all-new Screamin' Eagle® Extreme CNC-ported cylinder heads, a 68mm throttle body with a cast 68mm intake manifold, and an SE8-550 high-lift cam with 6.8 g\/sec fuel injectors. New forged high-compression pistons and rings are designed to handle increased combustion forces, complemented by high-performance tappets, 4.31\" steel sleeve cylinders, and a Screamin' Eagle® Pro Billet Cam Plate and Oil Pump. The kit is available in Black Granite and features Screamin’ Eagle and Stage IV badging.\n\nInstallation details include that it can be installed without removing the engine from the chassis. However, for models originally equipped with Variable Valve Timing (VVT), this will not be retained. Specific fitment is for '23-later FLHXSE and FLTRXSE, '24-later FLTRXSTSE, and '26-later FLHXLSE and FLHXSTSE models. A cylinder head retrofit kit (P\/N 29900147) is required for '23-'24 models. For models factory equipped with VVT, P\/N 18400117 and 25400103 must be purchased separately as VVT will not be retained. ECM recalibration with a Pro Street Tuner (P\/N 41001141, sold separately) is required for proper installation. This kit does not fit California models. Dealer installation is recommended.\n\nThis kit is 49-State U.S. EPA compliant and comes with a 1-year limited warranty. Screamin’ Eagle products may not be available or street legal in all countries; consult your local dealer for more information.","brand":"Screamin' Eagle","offers":[{"title":"Default Title","offer_id":52663621288248,"sku":"92500143","price":4574.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687676753.jpg?v=1784328517","url":"https:\/\/store.motormia.co\/products\/121ci-to-135ci-engine-kit","provider":"MOTORMIA","version":"1.0","type":"link"}