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
Powerglide Powerglide
4L60-E 4L60-E

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.

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