It's a S13 CA .. at the mo it's got Saab intercooler . Decat. Uprated shells and mains . Induction. That all of what I know to be on there. I've order a boost control and gonna throw on that gt28 rs. ( think it comes of a s15
On the CA motors the standard ecu do take very nicely to a horseman chip you can pick stage 1, 2, or 3 but on either of then you WILL need a uprated fuel pump as standard ones was shocking out the factor never mind 20years down the line check out the horseman website and it will tell you what you need for each stage of chip hope this help Regards Josh