befor you install that flywheel reconsider shipping it back i have a 2004 GTS I installed a fidanza 7.5 flywhell and it feels the same at stock. Get your money back and spend it on something else like a TRD exhaust at least you will get a horsepower gain. My car does not rev up any quicker since i put it in and the acceleration feel the same also. Hope i got to you in time
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