Samsonas Motorsport Dogbox Kit, BMW E46

The Samsonas Motorsport E46 Dogbox Gearkit is designed to fit into the original E46 5-Speed ZF S5D Housing. This gearkit features a new surface and profile big teeth, as well as a clutch shaft made from special driveshaft steel. 

With straight cut forged steel gears, racers will notice minimum rolling resistance. Each Samsonas gearbox features super finished, shot-peened gears and internals for optimal quality, and all selectors, shifting fingers, protections, forks, and rods are made from billet steel for maximum reliability. 

These gearboxes are suitable for:

• Rally
• Endurance Racing
• Time Attack
• Rallycross
• Circuit
• Hill Climb

4-Speed Ratios

I     2,615

II     1,938

III     1,563

IV     1,316

5-Speed Ratios

I     2,400     2,067    2,643

II     1,789     1,600    1,850

III     1,429     1,300     1,300

IV     1,174     1,110     1,110

V     1,000     1,000     1,000