{"product_id":"line-pressure-booster-kit-2","title":"Line Pressure Booster Kit","description":"The Sonnax Line Pressure Booster Kit is engineered to enhance the performance and durability of 4L80-E and 4L85-E transmissions. This kit includes a precision-machined valve, a sleeve, a stronger pressure regulator spring (approximately 10% stronger than OE), and two O-rings.\n\nThis system aims to deliver shorter, crisper shifts and increased torque capacity without introducing low-speed harshness. It also improves the holding capacity of the transmission's bands and clutches, contributing to increased overall durability. A key benefit is the controlled pressure increase, which avoids overloading the transmission pump at idle while providing optimal pressure when needed most.\n\nThe Sonnax Line Pressure Booster Kit is designed as a simple, affordable drop-in solution. No special tools or reaming are required for installation, making it a convenient upgrade for transmission rebuilds or performance enhancements. The kit offers the advantages of increased line pressure with a modest increase at the low end and a high-end pressure that meets or exceeds other aftermarket spring options.","brand":"Sonnax","offers":[{"title":"Default Title","offer_id":52866326790456,"sku":"4L80E-LB1","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687674649.webp?v=1787906760","url":"https:\/\/store.motormia.co\/products\/line-pressure-booster-kit-2","provider":"MOTORMIA","version":"1.0","type":"link"}