they are great cars, very good value for money with modern comfort if you go for the S14a model. the S13 is a 1.8 turbo, the S14/14a is a 2.0 turbo.

They are quite easy to tune, mine is running 290BHP/280Lbft on stock ECU and injectors. They have a hopeless intercooler but you can change this for a front mount for under £500. You'll have plenty of sideways fun.