A quick "maybe" list (I'm on campus right now-Lord, it feels good to say that again!), with the admission that I'm not near the game, and frankly, I'll probably just use the eyeball test, then check later. lol
Civic Type R (DLC)
Wings West Civic
VW MK5
The oft-maligned Turbo5 (Sorry, it's the school thing)
BTW, if you're talking about the base integra, that's fine. I tested one during the development of the sockmonkeys, and it was pretty well-balanced. IIRC, the issue with the mugens is that they get friggin' huge rear tires. A grip built one only fits about 225 hp in B class, where most similarly prepped FF cars get upwards of 250. On a similar note, I think I'm building a Mugen S2000 just to see what happens with it, but that's another topic for another time. lol