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Real experience
We test before we recommend.
PRODUCT DESCRIPTION
RacingDiffs LSD Conversion Kit for Alfa Romeo. Upgrade your Alfa Romeo with RacingDiffs progressive LSD conversion kit, designed to transform your driving experience by improving grip and control. This kit is compatible with a wide range of Alfa Romeo models equipped with C630, Getrag M32, and GM F40 gearboxes. Compatibility:
C530/C630 Gearbox:
Alfa Romeo 145, 146, 147, 156, GT (1.9 JTD)
Alfa Romeo 156, 166 (V6)
Alfa Romeo GTV, Spider (V6)
Getrag M32 Gearbox:
Alfa Romeo 147
Alfa Romeo 159
Alfa Romeo Brera
Alfa Romeo Mito (1.4 Turbo, 1.6 CDTI)
GM F40 Gearbox:
Alfa Romeo 156 (2.4 JTD)
Alfa Romeo 159 (2.4 JTDm, 1.9 JTDm)
Alfa Romeo Brera (2.4 JTD)
Alfa Romeo Spider (939) 2006-2010
RacingDiffs Progressive Limited Slip Differential Conversion Kit: The Ultimate Solution for Optimal Grip
Say goodbye to one-wheel spin with our progressive LSD conversion kit, which transforms your standard differential into a clutch-type limited-slip differential (LSD) with 25% lock. This easy-to-install kit includes all the necessary components to enhance performance and control.
Why choose RacingDiffs over other alternatives?
Uncompromising material quality: Our plates are made from high-quality tool steel, heat-treated and nitrided for superior wear resistance. Unlike cheaper alternatives such as Phantom Grip, we also integrate friction discs that prevent metal chipping, ensuring long-lasting performance and reliability.
Maximized performance: Inspired by ZF’s plate-type LSD units and ramp angles, our design ensures low preload and progressive locking effect. This means you’ll enjoy smooth driving in slow corners but receive optimal torque distribution at high RPMs for superior traction.
The RacingDiffs Difference
Our commitment to quality guarantees the most advanced LSD kit on the market. Trust RacingDiffs for durability, increased grip, and first-class performance in any driving condition.
The kit contains all necessary parts for installation.










WHY THETUNERLAB
We have spent years building cars, racing, and testing the exact same parts that we sell.
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We test before we recommend.
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We help you choose the right part.
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Only trusted manufacturers.
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Before and after the purchase.
+10 years
of passion for drifting
+30.000
available products
+5.000
satisfied customers
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passion for motoring
Each product indicates compatible models in the product description. If you have any questions, you can contact us and we will help you choose your best option.
-If the product is in stock, the usual delivery time is 2 to 5 working days.
-If the product is out of stock, the delivery time is 7 to 15 working days.
All our products come with the manufacturer's official warranty and comply with current regulations.
Yes. We ship orders to Spain and most European countries using specialized transport agencies.
You can contact our team via WhatsApp, email, or our website's contact form.
Shipping costs depend on the type of product, its weight, dimensions, and the destination country. In most cases, the amount is calculated automatically during the checkout process before the order is finalized.
For some products, especially large items or those with special characteristics, shipping costs may require a manual review. If the amount shown does not match the actual shipping cost, we will contact you before processing the order to inform you of the final cost and request your confirmation before proceeding. We will never charge any additional fees without your authorization.