Manufacturer's Part Number:
Automatic Transmission Upgrade Kits
B&M Shift Improver Kits
Summit Racing Part Number:
Sold as a kit.
Choose In-store pick-up (OH, GA, NV) on our web site.
These B&M Shift Improver kits are the easiest way to get the stout performance you've always wanted out of your automatic transmission. All you need are some hand tools and an afternoon, and you can turn your transmission into a B&M-tuned unit. Each kit has two stages to fit your needs: RV/Towing and Street/Strip.
Most Helpful Reviews