Shift Improver Kit 1988-1994 Chevrolet, Buick, Olds, Pontiac, GMC TH-400 (3L80)
Application: 1988-1994 Chevrolet, Buick, Olds, Pontiac, GMC TH-400 (3L80)
Recalibrate your automatic transmission for
optimum performance & extended life!
- Select the mode that best suits your application
- Provides crisp shifts on any stock automatic transmission
- Eliminates shift overlap & excess wear on clutches & bands due to slippage
The B&M Shift Improver Kit the easiest way to get the stout performance you’ve always wanted out of your automatic transmission - and you get two modes of performance to select from: Heavy Duty, or Street/Strip. It’s our least expensive and simplest to install kit. All you need are some hand tools! In the space of an afternoon, you can turn your transmission into a B&M-tuned unit! Ask the thousands of satisfied customers that have installed one in their transmissions!
STAGE 1. HEAVY DUTY
Firm positive shifts without loss of driver comfort for improved performance in all street vehicles. Recommended for regular passenger vehicles.
STAGE 2. STREET/STRIP
Provides positive shifts for high performance street use or for competitive events. This level is for the enthusiast who wants the hardest, quickest possible shift.