SKU: 59670459482

MFactory Helical LSD Differential BMW 1-Series E8X 135i MT 07-13

Sale price$492.51 Regular price$547.23
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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

MFactory Helical LSD Differential BMW 1-Series E8X 135i MT 07-13Gain 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: 59670459482

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4.9 ★★★★★
Based on 28 reviews
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Verified Purchase
Amazon Customer
Chelsea, US
★★★★★ 4
Balls need to squeak out of the box
Color: 12 Tennis Ball
The squeaky ball lights up the faces of my dog shelter furiends, they love to fetch and chew the ball to make it squeaky. I have been buying these balls for about a year now. They don’t last long with some of the dogs, but the joy is worth the price. Lately some of the balls do not squeak right out of the box but many of the balls are fine. Returning the box doesn’t make sense because I used some already so I thought I would comment, dropping one star so far.
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Reviewed in the United States on July 21, 2025
M
Verified Purchase
Margot
Bozeman, US
★★★★★ 5
Nicer than I expected
Color: 12 Tennis Ball
Much more sturdy than other "squeaky" balls of this type. I love that they have an internal or covered squeaker, so I don't have to worry about my dog chewing it and swallowing a plastic squeaker. But ... what I find as a plus, my dog sees as a minus, since one of his favorite thing is to chew a ball until it stops squeaking. They come in a plastic net bag, which is very handy for storage also.
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Reviewed in the United States on March 14, 2023
G
Verified Purchase
Groundhog55
Grantham, US
★★★★★ 1
Squeaks break immediately
Color: 12 Tennis Ball
Squeaks break almost immediately, even with very light chewing. Some are so badly made that the squeaks break after one or two squeezes. Get Kong balls instead.
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Reviewed in the United States on April 1, 2026
S
Verified Purchase
Sarah Kendziorski
Grantham, US
★★★★★ 3
Nice balls but arrived with a bad chemical smell
Color: 12 Tennis Ball
Wonderful Product!!! The balls themselves are amazing and the squeaker in them my dog loves. I am giving them only a three star because they arrived and they SMELL like chemicals so bad!!! I was afraid to give it to my dog so i washed one out and put it up hoping the chemical smell will go away. This not good for a dog as unknown chemicals can make them really sick. Whatever amazon is spraying on their stuff it's not good
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Reviewed in the United States on April 1, 2025
B
Verified Purchase
Brandi G
Pawtucket, US
★★★★★ 5
Puppy tested & approved
Color: 12 Tennis Ball
I ordered these squeaky tennis balls for my cocker spaniel. She absolutely loves these tennis balls with the squeakers in them! She plays with them all day, and chews on them frequently. We have not had any problems with her, breaking the tennis balls, which is generally the issue we have with her. The tennis ball fuzz stays on the ball very well, which is usually an issue with standard tennis balls, because my dog likes to peel off the yellow fuzz on all tennis balls. She has not been able to do that with these. I will definitely be buying these again , but will not need to anytime soon as these are extremely well built.
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Reviewed in the United States on October 25, 2022

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