Good afternoon guys ! I have some questions on how to increase horsepower on my car .I have a Skoda Fabia 6Y2 1.2l 12v and currently i have installed a cold air intake an a sports exhaust .I want to know ,besides ECU remapping , how can i increase hp on that Natural Aspirated engine with parts from other platforms or custom parts from automotive factories. I.e. camshafts ,pistons, injectors etc.I know it doesn't worth the effort and the money but i want to explore the full potential of that engine.Thank you in advance guys!