after intake, do the exhaust. Either get the bosal or buy a muffler and get a shop to custom bend some pipe for you. Still want more? That depends on if you want to play with the warranty. I prefer bolt-on's until my warranty is up. So cams or pistons can wait. However, there is itake cam, exhaust cam, high comp pistons, lighter flywheel, clutch, pulleys then all sorts of suspension. No header yet, sorry. If there were, I would suggest cat back and header which would cost about $1200 CDN.