Stalling when in deep water

I have a 2014 rancher I have a snorkel and packed the sparkplug boot with dylectric grease. So I was testing the new snorkel out and got in a deep hole and water was over my exhaust and it kept wanting to stall out and cut the power, I was wondering if I get a hmf performance pipe if it would do the same thing. I know they make the swamp seires with a snorkel but would rather have the performance pipe. Any advice would be great.