i have the tci sf3000 stall. it shaved over half a second of my times and feels just like stock. its a great street converter

 

Yeah running around at ~2.5k average is pretty loud. But that is a byproduct of my exhaust setup as much as the loose converter. You can drive at like 2k but any road above ~30mph you'll want closer to 2.5k to get up to speed quickly enough. Going uphill does the same thing but worse because it's under more load.