When it comes to gaining a significant advantage over your competitors, the MFactory Helical Limited Slip Differential (LSD) is your ultimate ally. This LSD offers a seamless and consistent distribution of power to your vehicle's wheels, allowing you to harness maximum traction and put the power firmly on the ground.

But what does an LSD do, you ask? Well, without an LSD, your car essentially operates as a "1-wheel drive," as it can't deliver torque to both wheels simultaneously. Instead, it directs torque to the wheel with less grip, highlighting the limitations of an open differential, which is standard in most vehicles.

An LSD, on the other hand, permits the wheels to spin at slightly different speeds by a limited amount, typically represented as a percentage difference. It's when the differential locks that both wheels receive power. It's important to note that LSDs function differently from locked differentials, such as those in off-road trucks, which supply equal torque and rotational speed to both rear wheels simultaneously, often causing handling issues.

Key Features:

• Crafted from imported Japanese SAE 4320 Steel
• Industry-first 30-day "Feel the Torque™" money-back guarantee, along with a Limited-Lifetime Warranty
• Forged, double tempered, and super sub-zero treated for unparalleled toughness
• Utilizes advanced Shot Peening technology to increase surface hardness
• Engineered to withstand the extreme shock loads of competition-level drag racing
• Advanced gear geometry designed using industry-leading software, delivering more power to the ground
• Exclusively uses the highest quality Brighton-Best Hardware
• Maintenance-free gears eliminate the need for special fluids and rebuilds associated with plate-type LSDs
• Ensures lock-free operation, preventing adverse effects on steering response
• Rated for up to ~1000 WHp

As part of the break-in procedure, we recommend changing the fluid after the first 3-400 miles of use.

Warranty:

MFactory Competition Products stands behind the quality of its Helical LSDs. A limited lifetime warranty is provided, ensuring that these LSDs are free of defects in materials and workmanship upon receipt of the product and professional installation. Any part returned must be determined by MFactory Competition Products to be defective before any warranty credit or replacement is issued.

MFactory Competition Products's obligation under the warranty is limited to repairing or replacing, at its discretion, any part proven defective. The customer is responsible for prepaying transportation charges.

It's important to note that the final determination of the suitability of the products for the intended use is the sole responsibility of the buyer. MFactory Competition Products shall not be liable for any special, direct, indirect, incidental, or consequential damages, including claims for delay, loss of profits, or labor that might be claimed as a result of the failure of any part.

Furthermore, MFactory Competition Products shall not be liable for any damage or injury to persons or property resulting from improper installation or misuse of any part covered by this warranty.

Please be aware that there are no other warranties, whether expressed or implied, extending beyond those set forth above.

Note: To ensure a proper fit, you'll need to reuse the old bearings or acquire new bearings and press them onto each end.

The factory dual-mass flywheel in MINI N14 and N18 engines is engineered for comfort, minimizing drivetrain vibrations and smoothing out gear transitions. However, that comfort comes at a price—28.3 lbs. of rotational mass that dulls throttle response, slows acceleration, and hampers precise rev-matching. Dual-mass flywheels are also notoriously prone to failure under high-performance or tuned driving conditions, and their replacement costs can be steep.

The ECS Performance Lightweight Flywheel Kit eliminates these compromises with a precision-engineered, single-mass flywheel that delivers true enthusiast-grade performance. Weighing in at just 18.8 lbs, this flywheel sheds nearly 10 lbs. of rotating mass compared to OEM—instantly sharpening throttle response, improving clutch feel, and delivering quicker acceleration that transforms the driving dynamics of your MINI.

Performance-Oriented Design: This flywheel is specifically engineered to work with OE and aftermarket unsprung clutch discs. While dual-mass setups provide damping on stock vehicles, switching to a single-mass flywheel with an unsprung disc introduces more direct engagement—ideal for spirited daily driving or track-ready builds. Expect a more aggressive, performance-focused clutch feel.

Key Features:

Lightweight Construction: Sheds nearly 10 lbs. of rotating mass for faster revs and improved acceleration

4140 Chromoly Steel: Heat-treated to HRC 28–32 for outstanding strength, wear resistance, and dimensional stability

Precision-Balanced: Exceeds OEM G16 specification (175 g-mm) for smooth, high-RPM operation

Black Oxide Coating: Offers corrosion resistance and a professional finish

OE-Compatible Fitment: Designed to work seamlessly with N14 architecture clutch kits

SFI 1.1 Certified: Proven safe and reliable under extreme operating conditions

Optimized Step Height: Ensures maximum clutch clamping force and long-term durability

Performance Gains:

OEM Dual-Mass Flywheel Weight: 28.3 lbs

ECS Single-Mass Flywheel Weight: 18.8 lbs

Weight Savings: Nearly 10 lbs of reduced rotational mass

Results: Sharper throttle response, more precise rev-matching, and a more engaging driving experience

Kit Includes:

ECS N14/N18 Lightweight Performance Flywheel

South Bend Stage Two “Daily” Clutch Kit

Pilot Bearing

Throw-Out Bearing

Clutch Alignment Tool

(6) Genuine MINI Flywheel Bolts