NECRO TIME! LoL Sorry I couldn't help it.
At first I was like, Pfft.. Wtf.. Gouki rapes. I mean, the man kicked a submarine up from the ocean floor 150 meters down. (That's about 3.2 miles give or take.) Yet, you also have to be equally impressive with some of the shit Master Asia did (considering his age and diseased state.)
Gouki kicking submarine: youtube.com/watch?v=sawFg3DeTJU (I would post the links in full url form but it won't let me. Oh well!)
A decent sized submarine weighs anywhere from 5 to 25,000 tons. (I could be wrong but you can judge what you might think it weighed based on the video.) Also we have to take into account the added weight from the water resistance. I have no idea what that would sum up to but just wait until I give you Master Asia's feats.
VS
Master Asia stops bullets blah blah. No.. Not amazingly impressive. (Unless you're stopping mobile suit fired bullets, .. which he did.)
He punched a skyscraper up from underground though! Can you say Holy Shit?!
(Domon helped but you have to take into account that he was weakened from combat, AND dying/old.) Also he used a NORMAL headband, that he snagged off Domon, and somehow morphed it into like 100x it's length to take out a mobile suit. (That is some wacky logic but implies amazing skill.) He also lifted the earth underneath one of the mobile suits like f@ckin superman and flipped it over.
(Somehow blowing it the f#ck up with his fancy ways.)
Take note that he was also RUNNING alongiside the core fighter Jet to the Gundam. (Although I can't really say how fast it was going, I'd like to say above average Vehicle "wtf?! Run away!" speed.)
Skyscraper Punching anyone?: youtube.com/watch?v=8PHmobQLllo
Master Asia multiple feats: youtube.com/watch?v=8AwV3o0nAYk
Average Skyscrapers weigh anywhere from 300,000 to 500,000 tons. Take into account the fact that he also launched it from being partially buried underground, and I dare to say we have a very close match.
MAYBE I'M WRONG! But to me it seems the match is slightly in favor of Master Asia. (Perhaps Gouki is more impressive for actually being underwater that deep though.)