Upgrade your vehicle's shifting performance with the SONNAX 8L45 8L90 SHIFT ZIP KIT. This high-quality kit is designed to enhance your car's transmission, ensuring smoother and quicker shifts every time. Made by Sonnax in the United States, this kit is perfect for those seeking performance and customization in their vehicle. With no manufacturer warranty, this kit is for the serious driver who wants to take their driving experience to the next level. Its OE spec or performance/custom design ensures a perfect fit for your car's transmission. Don't settle for mediocre shifting, upgrade today with the SONNAX 8L45 8L90 SHIFT ZIP KIT.