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Sonnax Line Pressure Booster Kits

4.43 out of 5 stars 14 Customer Reviews

Sonnax Line pressure booster kits allow you to shift aggressively and then feel the tranny grab the clutches with more power when it changes gear. The larger boost valves and matching regulator springs raise line pressure progressively as higher pressure is commanded. These kits modify the sensor signal, which causes the computer to create a pressure increase. They're installed between the pressure sensor and vehicle harness using OE-style sealed connectors; no modifications are needed to the transmission.

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Sonnax Line Pressure Booster Kits RFE-LB1

Pressure Booster, Line Pressure, Electric, Kit

Part Number: SOX-RFE-LB1

4.43 out of 5 stars ( 14 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

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