Take your performance to the next level with the MFactory PRO Series Gears. Recognizing the demand for transmission components that can withstand the extreme shock loads produced during Drag Racing, MFactory Competition Products are proud to offer our range of top-tier competition level gears.

Diamond Cut to exacting tolerances from Forged High-Nickel-Chromium-Molybdenum Steel and put through our own proprietary heat treatment process, the MFactory PRO Series Gears are the pinnacle of off-the-shelf performance gears for today's Sport Compact.

Through the use of leading-edge Solidworks 3D CAD & Cosmos FEA software, our advanced gear geometry helps to increase tooth strength, reduce friction and, most importantly, minimize parasitic drivetrain losses. Transmissions built with MFactory PRO Series Gears transfer, on average, 1-2% more power to the ground over our competitors!

Part of the testing criteria for our gears included extreme hot-lapping and tuning sessions on loaded dynos which ensure that not only are our gears strong enough to handle the shock loads encountered during Drag Racing, they are also durable enough to handle the variable loads encountered during day-to-day Street Driving.

Our premier transmission upgrade, the MFactory PRO Series Dog Gear Sets includes our newly redesigned Shafts & Gears, increasing drivetrain efficiency and virtually eliminating Axial Shock Loads. Please note that Dog Engagement is not recommended for use on the Street.

B16A/16B/18C Drag Race Set Includes: Rated to ~1000whp
1st Gear - 2.818 (Straight-Cut)
2nd Gear - 1.769 (Straight-Cut)
3rd Gear - 1.250 (Straight-Cut)
4th Gear - 0.910 (Straight-Cut)
5th Gear - Shaft Brace
Final Drive - 4.850 (Straight-Cut)

K20A Drag Race Set Includes: For All Motor Drag Applications Only. Rated to ~500whp
1st Gear - 2.313 (Semi-Helical)
2nd Gear - 1.650 (Semi-Helical)
3rd Gear - 1.304 (Semi-Helical)
4th Gear - 1.080 (Semi-Helical)

K20A Road/Race Set Includes: Rated to ~500whp
1st Gear - 2.313 (Semi-Helical)
2nd Gear - 1.650 (Semi-Helical)
3rd Gear - 1.304 (Semi-Helical)
4th Gear - 1.080 (Semi-Helical)
5th Gear - 0.958 (Semi-Helical)
6th Gear - 0.851 (Semi-Helical)

Take your performance to the next level with the MFactory PRO Series Gears. Recognizing the demand for transmission components that can withstand the extreme shock loads produced during Drag Racing, MFactory Competition Products are proud to offer our range of top-tier competition level gears.

Diamond Cut to exacting tolerances from Forged High-Nickel-Chromium-Molybdenum Steel and put through our own proprietary heat treatment process, the MFactory PRO Series Gears are the pinnacle of off-the-shelf performance gears for today's Sport Compact.

Through the use of leading-edge Solidworks 3D CAD & Cosmos FEA software, our advanced gear geometry helps to increase tooth strength, reduce friction and, most importantly, minimize parasitic drivetrain losses. Transmissions built with MFactory PRO Series Gears transfer, on average, 1-2% more power to the ground over our competitors!

Part of the testing criteria for our gears included extreme hot-lapping and tuning sessions on loaded dynos which ensure that not only are our gears strong enough to handle the shock loads encountered during Drag Racing, they are also durable enough to handle the variable loads encountered during day-to-day Street Driving.

The ultimate setup for the everyday street car, our PRO Series Synchro Gear Sets are designed to withstand high-horsepower boosted applications! A highly recommended upgrade for those running 400hp+.

By keeping our gears synchronous engagement, our gears are a direct swap for your oem gears with no further parts required for installation and, unlike a dog transmission, are suitable for a daily driver.

Honda B16A/16B/18C:
1st - 2.786 (Straight Cut) or 3.070 (Semi-Helical) or OEM
2nd - 1.900 (Straight Cut) or OEM
3rd - 1.430 (Straight Cut)
4th - 1.100 (Straight Cut)

Honda H22A/F20B:
1st - 2.786 (Straight Cut) or OEM
2nd - 1.900 (Straight Cut) or OEM
3rd - 1.430 (Straight Cut)
4th - 1.100 (Straight Cut)