What can I do to modify my bmw 95 325i engine?

I just bought it, and im looking to give a little more juice and make it perform better.What can I do to modify my bmw 95 325i engine?While I agree with the above, there are a few small things you can do. From personal experience, a free-flow exhaust system with a re-machined or modified throttle body does wonders for the throttle response. It may not give you tons more HP or speed, but it will make you a second or so quicker off the line. Other than that, forced induction is an option, but very expensive. Good luck.What can I do to modify my bmw 95 325i engine?Honestly BMW does a pretty good job of tuning their car straight out of the factory. If you add CAI, Headers, tune, Cams, and exhaust maybe you can reach 15+hp. Unfortunately if you're looking for more than that you need to go the supercharger route.What can I do to modify my bmw 95 325i engine?What enzo said. To make a huge difference you will have to used forced induction. Some may suggest working on the suspension, but if you have the cash I'd go with FI.