The spartan dude did as well, but he drove through a lake apparently.
Just dont drive in very deep water and you'll be okay.
Even then, make a short ram intake if you're N/A and then TB intake when boosted.
Simple.
Jess drove it into a deep water hole(two feet or so) and then gunned it to try and get out of the hole... so yeah... if the filter is under water it obviously could suck water in that could get into the motor.
98 GTP Coupe- 180* T-stat, GMPP Front Sway Bar, Dual Aeroforce Interceptor's, TDC FWI, TDC Taylor 10.4's, ZZP SS Plog, ZZP 3" SS catted DP, ZZP MPS W/3.4, AL104's gapped @.055, 3800Perf. PCM