Best Performance Transmission Shift Kits of 2025

The B&M 30262 Shift Improver Kit recalibrates automatic transmissions to provide crisp shifts, optimal performance, and extended life. The kit eliminates shift overlap, which reduces excess wear on clutches and bands caused by slippage. The package includes two kits that cater to different needs: Stage 1 for RV/heavy-duty applications and Stage 2 for street/strip applications. The installation process is straightforward, requiring only hand tools.

The B&M Shift Kit recalibrates your automatic transmission to ensure smooth and precise shifts, enhancing overall performance and longevity. By eliminating shift overlap and reducing wear on key components, this kit optimizes your driving experience. With two kits in one box, you can choose between Stage 1 for heavy-duty use like RVs or Stage 2 for street performance. Easy installation with basic tools makes upgrading your transmission a hassle-free task.

The B&M 20260 Shift Improver Kit recalibrates your automatic transmission for crisp shifts, optimum performance, and extended life. It eliminates shift overlap and excess wear on clutches and bands due to slippage. This kit includes two options in one box: select Stage 1 for RV/heavy duty applications, or Stage 2 for street/strip applications. It is also easy to install with hand tools.

The B&M Shift Kit enhances your automatic transmission for better performance and longevity. You can choose between two options: Stage 1 for heavy-duty tasks or Stage 2 for high-performance street driving. This kit is convenient because it allows for recalibration without needing to remove the transmission, saving you time and effort. You’ll still enjoy normal automatic driving with the selector in "Drive," making it user-friendly for everyday use. Plus, it comes with a one-year limited warranty for peace of mind.

The B&M Shift Improver Shift Kit recalibrates your automatic transmission for better performance, extended life and eliminates shift overlap and excess wear. The kit includes two stages, Stage 1 for RV/heavy duty applications and Stage 2 for street/strip applications, and can be easily installed with hand tools.

The B&M Shift Improver Kit enhances your automatic transmission for smoother and more precise gear shifts. It recalibrates your system, ensuring optimal performance and longevity. You’ll enjoy reduced shift overlap, which minimizes wear on clutches and bands caused by slippage. This kit includes two options: Stage 1 for heavy-duty use and Stage 2 for street or racing applications. Installation is simple and can be done with basic hand tools, making it convenient for anyone looking to upgrade their vehicle's transmission.

The B&M Shift Kit is a performance transmission upgrade designed to enhance your automatic transmission. It recalibrates your transmission for precise gear shifts, improving overall performance and durability. By eliminating shift overlap and reducing wear on critical components, such as clutches and bands, it ensures smoother operation and extends the lifespan of your transmission. Whether you have an RV for heavy-duty use or prefer street/strip driving, this kit offers two options to suit your needs. Easy to install with basic tools, the B&M Shift Kit is backed by a 1-year limited warranty, providing peace of mind for your investment.

The B&M 30235 Transpak Shift Kit recalibrates your automatic transmission for optimal performance, extending its life and reducing excess wear. It eliminates shift overlap and slippage, prolonging the life of clutches and bands. The kit includes two options: Stage 1 is suitable for RV/heavy duty applications, while Stage 2 is ideal for street/strip applications. Installation using hand tools is straightforward.

The B&M Shift Improver Kit enhances your automatic transmission's performance by recalibrating it for sharper shifts. This means you can enjoy smoother gear changes, which improves your vehicle's overall efficiency and longevity. It also reduces wear on clutches and bands by eliminating slippage, helping to extend the life of your transmission. With two options available, you can choose Stage 1 for heavy-duty applications or Stage 2 for street and strip use. Installation is straightforward, requiring only basic hand tools, making it accessible for most users.

B&M 40262 Shift Improver Kit recalibrates your automatic transmission for optimum performance, extended life, and crisp shifts. It eliminates shift overlap and excess wear on clutches and bands due to slippage. The kit comes with two kits in one box, select Stage 1 for RV/heavy duty applications, or Stage 2 for street/strip applications. You can install it easily with hand tools.