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Good bang for the buck
Install was easy and well worth the money.
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The Whiteline Flat Out rear differential mount insert or "positive power" kit for the 08-10 Subaru STI is an easy to install solution to get rid of the "clunk". Have you ever experienced that terrible clunking sound during shifts? That is your rear differential moving around! The Whiteline rear differential mount insert kit will get ride of that annoying sound and get more power to the ground. The rear diff mounts in factory form allow the rear diff to move around a lot. The clunk is most noticeable during acceleration from a stand still and shifting gears quickly. The Whiteline rear diff mount kit will provide the driver with a precise gear shift and predictable clutch engagement. This kit installs very quickly and easily with simple hand tools. Whiteline includes all necessary hardware for installation as well as a grease packet and instructions.
Part Number: KDT903
Wow
by: Dereck
Great add on for the 2010 wrx. We were experiencing at the track the clunk on hard launch. Not only did this solve that noise but wow the power to the wells increased incredible. Will have to admit install was not fun on the bolts on the lower bushing. Stripped bolt and had take to shop have it taken off. Great product though!