B&M Th200/4r Shift Improver R03J003XXL Designed to deliver the ultimate

Designed to deliver the ultimate in base layer thermal protection

Black powder-coated aluminum construction

Slider Box

We’re exceptionally grateful to be part of so many builds

RJS Mid-tops also feature a Velcro strap closure for more ankle stability

B&M Th200/4r Shift Improver R03J003XXL Designed to deliver the ultimateShift Improver Kit for TH2004R B&M'specializes in performance automatic transmissions, torque converters, SFI approved flexplates, legendary automatic shifters, precision manual shifters, and many other transmission products including cast deep aluminum transmission pans, transmission coolers, and automatic transmission fluid. B&M Performance and Off Road has been at the vanguard of the growing automotive aftermarket since the early 1950s. Racers