Mazda Miata/MX5 Mazdaspeed 94-05 4.57 MFactory Ring & Pinion (MF-TRS-02F45-1)

Achieve the ultimate in acceleration with the MFactory Final Drive Gears. By changing your final gear ratios, you can experience a dramatic increase in acceleration, giving you on average, a 10-15% increase in torque throughout the entire rev-range over the OEM Final Drive.

Diamond Cut to exacting tolerances from Forged High-Nickel-Chromium-Molybdenum Steel
Perfect fitment & finish ensures hassle-free installation & maintenance, each and every time

Designed using leading-edge Solidworks 3D CAD & Cosmos FEA software
Advanced Gear Geometry minimizes parasitic drivetrain losses. Race transmissions built with MFactory components transfer, on average, 1-2% more power to the ground over our competitors!

Specifications

• Made from imported Japanese SAE 8620 and 4320 Steel
• Forged, Double Tempered and Super Sub-Zero treated for unsurpassed toughness
• Advanced Shot Peening technology increases surface hardness
• Advanced gear geometry designed using industry-leading software puts more power to the ground