lol yeah blow through is nice, its soo responsive, even if your using a stock maf also, i did my buddies turbo nx blowthrough using a stock de maf and it is soo resposive, the turbo is not in that good of shape either and burns oil come to find out and it still spins the tires in 2nd gear on 6psi of boost running open j-pipe. Its soo quick, i ran mine that way also and loved it, again yeah if you do blow one of your couplers off (they dont fly off, lol) it will save you from having to fix it on spot. But if you use good reinforced couplers with tbolt clamps and rolled edge piping or roll it yourself you wont really have to worry about them blowing off especially with a pretty much stock turbo setup.
Glad to hear the car is coming along vadim. Cant wait to see it done