Open Question: how much hp does a full yoshimura exhaust system add to a gsxr-750?

I have the RS-3 system with the header leading back to a slip on oval muffler. It's the racing series. It's a 97 mind you, in case it makes a difference. Carburetors sound awesome too and if you can answer that question I assume you know about bikes and was wondering how much the full k&n intake for that bike would add? I know I'm pushing some serious hp cuz I'm fat and the front wont stay down until 4th. Plus I've gotten new sprockets 1-3