dont post unless you know what the hell you're talking about , an SC61 blows the green out of the water as far as power goes, the Green is a 50 trim hybrid in a 20G compressor housing, you maybe can make 450 whp with every last bit of power extracted from it, it will not blow your stock motor unless its from operator error, it WILL achieve full boost by 4k rpm on a half ass tuned setup, good for mid-high 11's @ 120's on a properly set up AWD

SC61...borderline, its big, its bad, its laggy as hell, i rode in one car w/ one, wasnt getting full boost till almost 5K, and that was on a 2G compression/2G head setup, that spools quicker than a 1G setup, but pulled so hard the rev limiter wasnt even fast enough to react at 7500, S-afc was reading up to almost 8k, 450 out of a 61 is a no brainer, its basically a GT35R w/o the BB cartridge, and if memory serves me a slightly different turbine, but they do share the same 56 trim compressor, SC61 is available in 3" inlet E cover, or 4" inlet S cover

20G is a good street turbo, easy 350 whp on stock long block on pump gas, should spool about a cunt hair slower on a properly set up car than a big 16G (quadzilla's for instance, his car feels like a stock turbo building boost, but has a punch like mike tyson once it gets crankin)...i guess the E3 16G's are supposed to be making close to the power of the 20G, but to be honest, i'd be more inclined to be going with a Green, at the smallest, thankfully, not everyone thinks like i do