want to flash samsung s7 system ui nd s7 touchwiz home in stock 6.0.1..

I want to flash s7 sytem ui nd s7 touchwiz home in a stock 6.0.1...can i flash without getting bootloop or force close...i have both zip...can i flash the zip with twrp recovery or change the stock with a custom nd then flash...thnx for helping

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