Coils, wires, plugs. * Check boots and wires for cracking and/or arching. plugs for wear

Hello everyone, I am new to the forum. I have been doing research on tuning my 2000 S40. I believe these cars are under appreciated. No, you can not get them with a manual transmission ect. ect. Does that mean they are not worth the time? I am going to slowly catalog all progress on going from 160hp...