final gears Ford Fiesta ST 2014-2019 4.3:1 Final Drive – whoosh motorsports
SKU: 46941277347
final gears

final gears Ford Fiesta ST 2014-2019 4.3:1 Final Drive – whoosh motorsports

Sale price$25.36 Regular price$28.18
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Ships within 48 hours · Estimated delivery Jun 29 - Jul 4

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Description

final gears Ford Fiesta ST 2014-2019 4.3:1 Final Drive – whoosh motorsportsIncreases Acceleration and 0 60 time. Direct Stock OE replacement. Genuine Ford Replacement Parts Parts Included: Crown Wheel Main Output Shaft Pinion 6th Gear Pinion *optional* Main Pinion Bearing (use drop down to select) The Original IB6 type Gearbox has a Final drive ratio which is designed primarily for economy not performance. by increasing the ratio from the original 3. 8: 1 to this 4. 3: 1 version you are effectively taking top speed away from

 
  • Increases Acceleration and 0-60 time.
  • Direct Stock OE replacement.
  • Genuine Ford Replacement Parts 

Parts Included:

  • Crown Wheel
  • Main Output Shaft Pinion
  • 6th Gear Pinion
  • *optional* Main Pinion Bearing (use drop down to select)

 

The Original IB6 type Gearbox has a Final drive ratio which is designed primarily for economy not performance.
by increasing the ratio from the original 3.8:1 to this 4.3:1 version you are effectively taking top speed away from sixth gear and adding acceleration.

Basic Principles
Motorsport transmission specialists world wide have been using this trick for many years to great affect.
The higher the final drive ratio the faster the acceleration through the gears to the terminal speed.

What will the new  ratio do to the top speed ?
With a ratio difference of approx. 12-13% that effectively means a lower top speed of 13%.
At 7000 RPM it is approximately 155mph which is a little more realistic and gives the full use of the gearbox.

What will the new ratio do to the acceleration ?
With a shorter ratio and full traction there will be a direct increase in acceleration through every gear.

 *NO discount codes will be accepted for this item

 "The top of 3rd gear (you know this from data logging) goes from 88 MPH to 77 MPH"

"Top of 4th goes from 116 to 102MPH"

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: 46941277347

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Don
Phoenix, US
★★★★★ 5
Great product
These are very good filters and the price is great. I have found that replacing both these filters at the same time works well for me
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Reviewed in the United States on April 29, 2026
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Randy B.
Bozeman, US
★★★★★ 5
OEM Quality.
Exact fit.
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Reviewed in the United States on April 7, 2026
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Rick Ivy
Carnegie, US
★★★★★ 5
Quality
Quick shipping and good quality materials.
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Reviewed in the United States on December 1, 2025
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Donna M. Kovalick
Grantham, US
★★★★★ 5
Perfect fit!
Perfect fit!!
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Reviewed in the United States on October 5, 2025
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Tim
Pawtucket, US
★★★★★ 5
Good quality fits 2025 Civic Hybrid
The filters are good quality. I did not find any instructions, but then again, the tube is full of them. Compaitble with 2025 Civic Hybrid. The engine filter have a bit of a chemical smell, but the air cabin filter does not. The cabin filter has an interesting yellow color.
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Reviewed in the United States on February 13, 2026

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