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B&M

B&M Shift Improver Kits

4.55 out of 5 stars 105 Customer Reviews

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.

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Results 1 - 11 of 11

B&M Shift Improver Kits 30262

B&M Shift Improver Kits 30262

B&M Shift Improver Kits 30262

Shift Improver, Chevy, TH350, Each

Part Number: BMM-30262

4.72 out of 5 stars ( 25 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

B&M Shift Improver Kits 20260

B&M Shift Improver Kits 20260

B&M Shift Improver Kits 20260

Transmission Upgrade Kit, Shift Improver, GM, TH400, TH375, M40, Each

Part Number: BMM-20260

4.8 out of 5 stars ( 15 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

B&M Shift Improver Kits 70239

B&M Shift Improver Kits 70239

B&M Shift Improver Kits 70239

Transmission Upgrade Kit, Shift Improver, GM, 700R4, 4L60, Each

Part Number: BMM-70239

4.65 out of 5 stars ( 20 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

B&M Shift Improver Kits 40262

B&M Shift Improver Kits 40262

B&M Shift Improver Kits 40262

Transmission Upgrade Kit, Shift Improver, Ford, C-6, Each

Part Number: BMM-40262

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

B&M Shift Improver Kits 50262

B&M Shift Improver Kits 50262

B&M Shift Improver Kits 50262

Transmission Upgrade Kit, Shift Improver, Ford, C-4, Each

Part Number: BMM-50262

2.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

B&M Shift Improver Kits 70360

B&M Shift Improver Kits 70360

B&M Shift Improver Kits 70360

Transmission Upgrade Kit, Shift Improver, GM, 4L60E, Each

Part Number: BMM-70360

4.8 out of 5 stars ( 10 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

B&M Shift Improver Kits 20261

B&M Shift Improver Kits 20261

B&M Shift Improver Kits 20261

Transmission Upgrade Kit, Shift Improver, GM, TH400, 3L80, Each

Part Number: BMM-20261

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

B&M Shift Improver Kits 10225

B&M Shift Improver Kits 10225

B&M Shift Improver Kits 10225

Shift Improver, Chrysler, 727, A-904, Each

Part Number: BMM-10225

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

B&M Shift Improver Kits 35265

B&M Shift Improver Kits 35265

B&M Shift Improver Kits 35265

Transmission Upgrade Kit, Shift Improver, GM, 200-4R, Each

Part Number: BMM-35265

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

B&M Shift Improver Kits 50260

B&M Shift Improver Kits 50260

B&M Shift Improver Kits 50260

Transmission Upgrade Kit, Shift Improver, Ford, C-4, Each

Part Number: BMM-50260

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

B&M Shift Improver Kits 10226

B&M Shift Improver Kits 10226

B&M Shift Improver Kits 10226

Shift Improver, Chrysler, 727, A-904, Each

Part Number: BMM-10226

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

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