MX-5 Limited Slip Differentials

A highly-rated upgrade that can really transform the way your MX-5 drives. An MX-5 limited slip diff, or LSD as it’s often known, can make all the difference when it comes to putting your MX-5’s power to the ground. Although many came with torsen differentials from the factory, these are often worn out and no longer as tight as they once were. Our range includes both replacement helical diffs and more aggressive 1.5 or 2-way plate-type diffs, perfect for hardcore track or drift use. Browse our full range below, or view all of our MX-5 parts online.

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About Our MX-5 Limited Slip Differential Range

Our MX-5 performance parts include a range of different LSDs from top brands like Kaaz, Quaife and Maruha, all of which have been specifically designed to slot into the differential casing of an MX-5. A number of different options are available to suit each generation of Mazda’s sports car, from early Mk1s through to the very latest Mk4s.

Maybe you’re looking to upgrade your worn out standard LSD? Perhaps you want to replace an open diff? Either way, our range has something for everyone. From more road-friendly (yet still extremely capable) helical options through to aggressive 1,5 and 2-way plate-type diffs, you can find exactly what you’re looking for here at BOFI Racing.

No matter which one you choose, you’ll be able to put every last horsepower to the ground more effectively with a new limited slip diff fitted. Whether you’re aiming to shave seconds off your lap times, enjoy those B road blasts a little more or hone your drifting skills, an LSD can make all the difference.

Frequently Asked Questions

Which MX-5s have a limited slip differential as standard?
When it comes to the Mk1 and Mk2, Mazda kept most of the LSD models for the home market. Eunos and Mazda Roadsters were often specified with an LSD, while their UK-spec counterparts went without. Having said that, some UK market special editions did come with one. A larger proportion of Mk3s had one, and most 2.0-litre Mk4s came with one too.

Which type of MX-5 limited slip diff is right for me?
If you’re intending to use your car mostly on the road (with the occasional track day thrown in), a helical diff is likely to be the better bet. They’re quieter, smoother and less intrusive, but still perform well on the circuit. On the other hand, if you’re building a serious track machine, a plate-type diff will be the better bet. 2-way diffs lock on both acceleration and deceleration, making them perfect for drifting, while 1.5-way diffs tend to be better suited to grip driving, as they only partially lock on deceleration. This results in improved turn-in – and faster lap times as a result.

Will I notice a difference on the road?
Absolutely. Although all of these diffs really come into their own on the track, you will be able to notice a difference on your favourite B road too. You can expect a sharper turn-in, more predictable mid-corner handling and more consistent power delivery on corner exit. No more guessing whether your diff will decide to lock or open!