Those Eisenmann tips look wayy better than stock.
I like my gloss black akra tips too
The driveablility, and low drone of the full akra is better than any full system out there, IMO. Some are louder and sound is a personal pref...but the fit, finish, drivability and lack of drown in the akra is amazing. See if you can find one and drive it.
IMO, the beauty and all the performance gains of the akra system is in the full evo package.
If I went slip-on (just the mufflers) I don't think I'd justify the 3k+ pricetag for the evo.