Cusco
Cusco Type-RS LSD 2-Way Rear CN9A (AYC Override)
$2,499.62
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Part price$2,499.62
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✓ Confirmed-fit parts — add your vehicle in your Garage to check fitment.
Bolt-in replacement for the factory AYC rear differential on the CN9A Lancer Evo V — this is the Cusco RS plate-type unit tuned to the combined 1.5/2-way ramp spec. Locks hard under both acceleration and decel so you're driving the diff, not fighting the OEM electronics.
If you've ditched or bypassed the AYC system and want predictable, mechanical locking behaviour out back, this is what you're after.