First of all I'm going to say that pre-94 jags are pieces of road-trash. These are full blown ricers. . . What a waste of money though.
I have always wondered about ricers. They spend a lot of money trying to make their slow Hondas go fast, when it would end up costing the same in the end to buy a car that is fast to begin with.
In the words of a guy I know who has owned 3 different Hondas (Civic Si, Prelude, Integra Type R). "I like Hondas, but I wanted to go fast, so that's why I got the Rx-7."
By the way, if you are a big Integra fan, go for the sleeper: totally normal body with turbo. Preferably with the vtec badge removed.
I own an Rx-7 myself. I know how much body kits cost. For the price of a high-end body kit you could drop in a Greddy turbo. Even better, get the 2.0 (or 2.2 or whatever's in the Prelude) and put the turbo on it. Even so you'd be hard pressed to break 13 unless you're forcing an unholy amount of boost. You'll also need to get a new clutch plate and a new engine computer. It all adds up. To make a Honda fast (somewhat safely), it takes as much as $10k of work, not including the body kit.
Of course, the real bottom line is that chicks seem to dig the Rx-7 more than the ricers.