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Interesting, I can only say I haven't had any issues with wear and both sets purchased about 6 months apart perform the same (as close as a comparision can be made with them on two different cars).

One set came from option1 then other as I was in a rush and had to pay much more for them a local dealer.

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I'm a fan of the federal tyres because they're affordable and I don't drive my car on the track.

Drove to Sydney and back with no problems.

If you're going to do performance work, use another set of wheels and performance tyres!

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Something also to add about Federal 595SS there is two rubber compounds, one soft one hard designated by the ZR in the size ie 245/45R17 or 245/45ZR17. The softer compound has far better performance and if you want to buy them IMO they would be the only 595SS to buy.

Re KU36's something else to mention they tend to go out of round once they have been sitting for some time. They come good quite quickly but are a real pain to drive on for the first few kms.

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