SKU: 9883406427

MFactory Final Drive Set - B-series VTEC (B18C Integra GSR / Type R)

Sale price$314.98 Regular price$349.98
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

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Description

MFactory Final Drive Set - B-series VTEC (B18C Integra GSR / Type R)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.

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

Fitment Notes

Honda B16B/B18C Fitment: Offering a revised design over our previous generation Final Drive Gears. Forged from stronger steel with a 50% larger tooth profile yet almost 1kg lighter! This kit is specifically made for the JDM B16B/B18C, US B18C1/B18C5 transmissions -- has the larger sized ring gear that accomodates an OEM Type-R LSD or factory B18C open differentials as well as aftermarker LSD's for the B16B/B18C transmissions. Will not fit B16A, B17A, or B18A/B transmissions.

Final Drive Ratio Options
  • 3.471
  • 4.71
  • 4.923
  • 5.167
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 9883406427

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    4.5 ★★★★★
    Based on 28 reviews
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    Verified Purchase
    Christina
    Dallas, US
    ★★★★★ 5
    Worth it for peace of mind to have in car
    Works as described. Have used twice now. Takes a few minutes but will put air in tire. The cord is long enough to reach every tire. Certainly loud when using car must be on to use
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 19, 2026
    A
    Verified Purchase
    Amazon Customer
    Carnegie, US
    ★★★★★ 5
    Great true inflator
    Great tire inflator also own a jumper pack in this brand, easy to use and great function to set the disired psi and auto shut off.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 18, 2026
    M
    Verified Purchase
    Michael D. Campion
    San Leandro, US
    ★★★★★ 5
    Delivers great PSI for a small package
    Unit works great ! I love the fact you can preset the psi. cut off ( I had to pump up some air shocks to 135 the unit did it with no problem ! )
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 6, 2026
    L
    Verified Purchase
    Luis Fernando Cortes
    Carnegie, US
    ★★★★★ 4
    Good inflator
    Not the best one but works well!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 8, 2026
    K
    Verified Purchase
    KSiy
    Cuba, US
    ★★★★★ 5
    Excellent Value for Price
    I highly recommend one of these in your vehicle for emergencies. Don't fall for those handheld cordless ones you see on social media. Those will only inflate 1-2 tires before depleting. You have unlimited power for the plugins and it will inflate at least 4x faster. The AstroAI is compact, lightweight and powerful for its price. Everything folds into its rectangular form factor for easy storage. The UI is simple and to the point. You can easily set the target pressure and it will auto stop. It's also a nice looking design with black and yellow which are common colors for power tools and emergency equipment. If I were being picky, the 2 minor cons that you'll find in other brands are: no option to plug into wall outlet & doesn't come with a case or bag.
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    Reviewed in the United States on November 22, 2025

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