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Cusco RS Rear LSD 1.5 Way (R180) (Part Number: )
Cusco RS Rear LSD 1.5 Way (R180) (Part Number: )
Cusco RS Rear LSD 1.5 Way (R180) (Part Number: )
Cusco RS Rear LSD 1.5 Way (R180) (Part Number: )
Cusco RS Rear LSD 1.5 Way (R180)
Subaru STI 2004-2007
Write a Review | 9 Q&As
Part # LSD 182 L15
msrp: $1,400.00

Only 1 left!

Features & Product Details

Cusco is one of the pioneering companies based out of Japan that has invested countless hours of research, design, and engineering to develop quality suspension and performance products that will improve your driving experience. Some of the fasted cars around the world who compete in time attack, time trials, and other racing avenues will more than likely have a Cusco product on their car.

On this page, you are viewing the Cusco RS 1.5 R180 Way Rear Limited Slip Differential. 

Featuring high tension chrome molybdenum steel housing and gears the Cusco LSD is up for the task of serious competition. With large oil windows for increased flow and Cusco's original groove cut technology for improved efficiency on the clutch plates, stability and longevity are promoted. ----- The 1.5-way Type RS utilizes coil springs located between the pressure rings to develop initial torque and features full engagement during acceleration and partially under deceleration. The use of coil springs rather than cone plates helps promote faster, smoother engagement, along with higher durability. This LSD can be converted to a 2 way LSD as well.

The LSD is completely customizable with different clutch pack order and spring tension preset, allows them to be set up to an exact preference of the end user. This particular unit can also be changed into a 2 way by rotating the center spline to engage on acceleration and deceleration.


Brand: Cusco
Adjustable: Yes
LSD Function: 1.5 Way / 2 Way
Location: Rear
Mfgr. Warranty: No Warranty
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days

Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
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  • Q: fitment for a 2013 Subaru STI hatchback  fatgoose4 months ago

    Does this fit 2013 Subaru STI hatchback?
  • Q: Cusco RS Rear L SD1,5 way(r180)  Andy's beast2 years ago

    I have a 2006 subaru sti and mine is grinding when doing full lock slow turns will this be a drop in fit to replace mine and also what oil is recommended for this unit
    • 0 of 0 people found the following answer helpful

      A:  Yes, this would be a direct fit for your STI and you would need to use the Cusco LSD Oil 1 Liter API/GL5 80W-140 Gear Oil (Part # CUS 010 001 R01)

      Brady R @ RallySport Direct 2 years ago  
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  • Q: Lsd cusco subaru sti   Lsd cusco subaru sti 20023 years ago

    Bonjour je recherche un lsd cusco 2 voies ou 1.5 pour ma subaru sti 2002 pouvez vous me indiqué le bon modèle si vous le vendez merci
    • 1 of 2 people found the following answer helpful

      A:  Este LSD se puede ajustar a 1,5 o 2 manera. Debe adaptarse a su coche si usted tiene un diferencial trasero R180 , pero no podemos garantizar el mobiliario en los coches fuera de los EE.UU. .

      Zach G. @ RallySport Direct 3 years ago  
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  • Q: differential ?  steven j3 years ago

    Would this work on my 05 wrx ? also would it work with an automatic transmission ?
    • 0 of 0 people found the following answer helpful

      A:  This LSD will not work with WRX models, and it is specifically for STI models. This is not confirmed to work with automatic transmissions.

      Zach G. @ RallySport Direct 3 years ago  
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