Summit Racing SpeedCard - learn how to get 10% back up to $100

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Sonnax Zip Kits

4.82 out of 5 stars 11 Customer Reviews

Sonnax Zip kits are engineered to cure common problems associated with today's automatic transmissions.

Sonnax Zip kits eliminate:

* Burnt clutches
* Line pressure instability
* Loss of fuel economy
* No line rise
* Pressure loss
* Shift concerns
* TCC apply and release concerns
* TCC codes
* Pressure switch codes

Results 1 - 6 of 6

Automatic Transmission Shift Kits, Zip Kit, with Boost Valve, O-Ring Plugs, Accumulator Pistons, Spring, Sleeves, Ford, 6R140, Kit

Part Number: SOX-6R140-ZIP

Not Yet Reviewed

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Shift Kit, Zip Kit, BMW, Ford, Infiniti, Lexus, Volkswagen, Volvo, Kit

Part Number: SOX-ZF6-6R60-ZIP

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Shift Kit, Zip Kit, ZF6HP-21, ZF6HP-28, ZF6HP-34, Kit

Part Number: SOX-ZF6-GEN2-ZIP

Not Yet Reviewed

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

ZIPPER KIT

Part Number: SOX-AODE4R75EZIP

Not Yet Reviewed

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Shift Kit, Zip Kit, 6R80, 6R100, Kit

Part Number: SOX-6R80L6R100ZI

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Automatic Transmission Shift Kits, Shift Improver, E4OD, 4R100, Sold as a Kit

Part Number: SOX-E4OD4R100ZIP

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

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