Hi Malakite. If you are looking for an air filter Pipercross is probably the best one. For a remap both Kmaps and Saws are well regarded. I would not say that one is better than the other, pick which one is nearest for you. As for an exhaust you pretty much get what you pay for, I have an MGOC Supersport which is not too loud but there are others. Don't expect a massive increase in power from each of these but you will get a much better throttle response. Don't bother with a decat it's not worth it. If you have the money a good exhaust manifold helps.