No one knows transmissions & torque converters like

Sonnax

No one knows transmissions & torque converters like 2008-sonnax-logo-white

High Performance Gearhead

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Heavy Duty & High Performance Upgrades

Sonnax high performance transmission products meet the toughest challenges faced by hard-working, daily-use transmissions as well as racing units going all-out on the street or track. Products range from innovative upgrades designed to fix everyday problems rebuilders see in their shops to an extensive line of Powerglide® components. We also offer specialty parts for high performance torque converters.

Dodge-Cummins Diesel
Dodge-Cummins Diesel
4L60-E
4L60-E
Powerglide
Powerglide®

More Popular Performance Applications

Trans Digest Top 10 Products

Popular Kits for Transmission Upgrades:

Line Pressure Booster Kits Affordable kits for big performance without a big price tag.

Performance Packs The best parts for performance & heavy-duty recalibration.

View NEW High Performance parts View all High Performance parts