MFactory 5.430 Final Drive BMW 3-Series E30 323i 325i M3 AT MT 85-92

Unlock the ultimate performance in acceleration with the MFactory Final Drive Gears. By upgrading your final gear ratios, you can experience a significant boost in acceleration, with an average 10-15% increase in torque throughout the entire rev-range compared to the OEM Final Drive. Whether you're on the track or the street, these gears are engineered to maximize your vehicle's power and responsiveness.

Crafted with precision, the MFactory Final Drive Gears are diamond cut to exacting tolerances from high-performance Forged High-Nickel-Chromium-Molybdenum Steel. This ensures perfect fitment, hassle-free installation, and reliable performance. Designed using Solidworks 3D CAD and Cosmos FEA software, these gears minimize parasitic drivetrain losses, transferring more power to the ground compared to competitors—on average, 1-2% more power for your performance upgrades.

Key Features:

• Made from high-quality imported Japanese SAE 8620 and 4320 Steel.
• Forged, double tempered, and super sub-zero treated for maximum toughness and durability.
• Advanced Shot Peening technology increases surface hardness, ensuring longer lifespan and improved performance.
• Advanced gear geometry designed using industry-leading software to enhance power transfer and reduce drivetrain losses.
• Offers up to a 10-15% increase in torque throughout the entire rev-range compared to OEM Final Drives.

Fitment Notes:

• Honda B16A2 Fitments: Not compatible with models equipped with Factory LSD.
• Honda B16A2/B16B/18C Fitments: Updated design with stronger forged steel, a 50% larger tooth profile, and nearly 1kg lighter than the previous generation.
• Honda Cable Fitments: Not compatible with models equipped with Factory LSD. For 92-93 YS1 transmissions, use B16A2 fitments.
• Honda '98 Spec Fitments: Specifically designed for the 1998 Spec Integra Type-R with a factory 4.785 final drive.
• Honda H22A Fitments: Not compatible with ATTS-equipped transmissions. Also suitable for Euro-R/Accord Type-R models.
• Ford Focus MTX-75 Fitments: Designed for 2002+ transmission models. Fits applications using the 1pc Pinion (Removable 3rd & 4th Gear).

Upgrade to MFactory Final Drive Gears and experience a dramatic improvement in acceleration, efficiency, and overall performance. The perfect addition to enhance your race-ready or street-performance vehicle.

Delivery in 3-5 weeks