SKU: 23588267174

MFactory Helical LSD Differential Rear Audi A4 S4 01E 5MT

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 Rear Audi A4 S4 01E 5MTGain 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: 23588267174

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4.4 ★★★★★
Based on 16 reviews
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Verified Purchase
Irene Z.
New York, US
★★★★★ 5
Love these
Size: 18-24 Months Infant, Color: Grey
These are awesome! My 15-month old wore these everywhere on our trip to Mexico. He scuffed them up quite a bit, but other than cosmetics, they're holding strong through sand, sprinklers, and general gallivanting around. They are super easy to get on, which also makes them easy for him to pull off. But as long as he's busy running a muck, he forgets they're even on his feet.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026
N
Verified Purchase
NAZIK
Battle Creek, US
★★★★★ 4
Sizing is off, send me free pair!
Size: 3-4 Years Toddler, Color: Navy, Size: 3-4 Years Toddler, Color: Navy
Sizing is off. I’m very frustrated. I ordered it to Costa Rica thru shipping company in Miami, which takes about 3 weeks to deliver and + shipping fee that they apply (20$) I spent time and checked the size guide. According to the size guide, I ordered “3-4 years old” which supposed to be 16cm from heel to toe) the pair I ordered ended up being 17cm! My baby’s feet are 15cm, I was planning to get 16cm for him to grow into it, but 17cm is too big. The shoes it self looks good, the leather is very soft and nice. I’m not sure how durable they are. Ordering first time from this brand. I ordered 2 pairs of shoes from a similar brand and liked it. They just didn’t have the size I needed. Although, the leather the previous brand uses for shoes seems much thicker. Again, I don’t know how durable “Dooty Fish” but I like how soft on skin they are.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 21, 2024
A
Verified Purchase
Amazon Customer
Alexandria, US
★★★★★ 5
Wide and flexible
Size: 18-24 Months Toddler, Color: White
Very cute I love the width and flexibility of the shoe 18 to 24 month is a bit too big for my 18 month old and she generally wears a size 6 1/2 shoe. I’m going to try the smaller size.
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Reviewed in the United States on July 15, 2025
K
Verified Purchase
Kelsey
Louisville, US
★★★★★ 1
Don’t buy
Size: 12-18 Months Infant, Color: Navy
Cute little shoes but I would not recommend people buy these. The elastic broke on both shoes within a month. And they cannot get even a tiny bit of water on them. (Which is impossible with a toddler) If they do get wet the bottoms become dangerously slick. I wanted to get nice little barefoot shoes that I could use as hand-me-downs for future kiddos but these were not it. Horrible quality and not worth the money.
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Reviewed in the United States on August 23, 2025
F
Verified Purchase
Flora
Phoenix, US
★★★★★ 3
Quality control?
Size: 6-12 Months Infant, Color: Navy, Size: 6-12 Months Infant, Color: Navy
These were true to color (in blue) and are a cute design, however we received a pair that was oddly mismatched size-wise. They were both 6-12mo, however one moccasin was visibly larger and wider than the other. They were both too big for my 7mo old, but even when he'd grow into one the other would be much too large so we returned. Too bad because these would have been perfect if the quality control was there.
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Reviewed in the United States on July 13, 2025

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