B&M CO SHFT IMPRV KT TH400 88-90 Auto Trans Shift Enhancer – 20261

88-90 Gm Th400 375 m40


Part Number 20261
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Auto Trans Shift Enhancer; TH-400 (3L80); Heavy Duty Or Street/Strip Mode; With Gaskets

The B&M Shift Improver Kit the easiest way to get the stout performance you’ve always wanted out of your automatic transmission & you get two modes of performance to select from:Heavy Duty, or Street/Strip. It’s our least expensive & 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.

Compatibility: TH400 (3L80) Transmission
Performance Type: Heavy Duty Or Street/Strip Mode
Includes Filter: No
Includes Gaskets: Yes

– Recalibrate Your Automatic Transmission For Optimum Performance & Extended Life
– Select The Mode That Best Suits Your Application
– Provides Crisp Shifts On Any Stock Automatic Transmissions
– Eliminates Shift Overlap & Excess Wear On Clutches & Bands Due To Slippage
– Limited 1 Year Warranty


Weight 0.80500 kg
Dimensions 14.35000 × 16.90000 × 0.55000 cm

Part Number