I'm looking to upgrade injectors(Maybe the S4?), intake(Forged), add hpfp upgrade from ECS, will probably build my own exhaust either 2.5 or 3" all the way out with maybe a borla muffler while its on the street still. i run red top coil packs and still use the iridium spark plugs(should I switch to copper?). has anyone gotten into tuning this little bad ass torque monster? I'm building one into a track car and can't wait to see peoples faces when you have a 250-300hp passat. I'm not looking to upgrade the turbo just yet, but I am not opposed to this either. I'm a noob and need some help getting off on the right foot any input, documentation, files, or any other assistance in helping me learn this skilled trade will be greatly appreciated.