SKU: 18361191397

MFactory Helical LSD Differential BMW 5-Series E39 523i 530i AT 95-03

Sale price$492.51 Regular price$547.23
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

MFactory Helical LSD Differential BMW 5-Series E39 523i 530i AT 95-03Gain a prominent advantage over the competition with the MFactory Helical Limited Slip Differential. Through the smooth and constant distribution of power to the wheels, the MFactory Helical LSD puts the power to the ground and maximises your vehicle's traction. A must for any race car, be it Street, Strip or Track! Diamond Cut to exacting tolerances from Forged High Nickel Chromium Molybdenum Steel Perfect fitment & finish ensures hassle free

Gain a prominent advantage over the competition with the MFactory Helical Limited Slip Differential. Through the smooth and constant distribution of power to the wheels, the MFactory Helical LSD puts the power-to-the-ground and maximises your vehicle's traction. A must for any race car, be it Street, Strip or Track!

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!

Multiple Stages Available (Honda & Mazda)
Users can choose (and upgrade) between the various Stages available, which determine the Bias Ratios. With the MFactory Helical LSD, upto 75% torque can be transferred to the one wheel! A must-have for serious road-racers

2nd Generation Design
The MFactory v2 Helical LSD is lighter, stronger and more efficient than any other Torque-Biasing Differential on the market today!

Covered by the MFactory Lifetime, Globally Transferable Warranty
Whether used on the Street, Strip or Track, all MFactory Helical LSD's come with a Lifetime, No-Hassle, Globally Transferable Warranty

No-Load/One-Wheel Syndrome
A common misconception is that a Torsen-Style Differential is useless under a no-load situation (e.g One wheel in the air). Although true to an extent, this no-load situation does not apply to the modern day car with Traction Control (or eDiff). For those without traction control, there is a very commonly used solution to the problem (used by professional race car drivers over the past 30+ years) that our competitors will not tell you; simply left-foot brake

Specifications

  • Made from imported Japanese SAE 4320 & SAE 9310 Steel
  • Forged, Double Tempered and Super Sub-Zero treated for unsurpassed toughness
  • Advanced Shot Peening technology increases surface hardness
  • Designed to withstand the extreme shock loads of competition-level Drag Racing
  • Advanced gear geometry designed using industry-leading software puts more power to the ground
  • Only the highest quality Brighton-Best Hardware is used
  • Maintenance-free Gears eliminates the need for special fluids & rebuilds associated with plate-type LSDs
  • Lock-free operation ensures no adverse affect to steering response
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: 18361191397

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Chino
West Palm Beach, US
★★★★★ 5
Very fluffy
Color: Wolf Tipped
Fast shipping and looks good
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Reviewed in the United States on May 19, 2026
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Terran
Whiting, US
★★★★★ 5
ITS SOOOO FLUFFY!!
Color: Orange
Ooouuu she’s so fluffy!!!!!! Omg, I’m in love. The color looks exactly as pictured. The gear shift cover was way too small for my RAV4 but it’s okay, it kind of interfered with the button to move the gear. Also, if you need to see the info on the dash, be aware that the steering wheel cover blocks it for the most part. I’m not bothered by it but it’s something to make note of for those who might be.
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Reviewed in the United States on April 24, 2026
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Michele Fay McKenna
Lowell, US
★★★★★ 5
Warm and soft!!
Color: Orange, Color: Orange
So funky and cute! Matches my inferno orange car! I really only wanted the steering wheel cover & have no need for the other covers because they don’t fit on my shifter, or my parking break. Besides, it gets kind of dirty on the console. Keeping gloves in the car so it doesn’t end up dirty from my hands this winter:) It does make it a bit hard to see the ignition and some of the gauges as it is so fluffy, but it’s so funny, I don’t care! Lol
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Reviewed in the United States on December 6, 2025
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Ms. Jackson
Draper, US
★★★★★ 5
If Fluffy was a person lol
Color: Blue, Color: Blue
Came vacuum sealed. No smell. I ABSOLUTELY LOVE how fluffy it is!!! The color is a perfect match to my car. I don’t have an emergency break lever so I couldn’t use that. Overall 10 out of 10 rt now!
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Reviewed in the United States on May 15, 2026
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Lelee
Birmingham, US
★★★★★ 4
Cute lil shedding but it’ll do 🩷
Color: Hot Pink, Color: Hot Pink
Cute I love it looks good 🩷🩷🩷🩷 lil shedding but it’ll do
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Reviewed in the United States on May 2, 2026

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