Hi. So, I have been waiting to get my car tuned for over a year with FP. I have the FP and am running Vits base map downloaded from flashprotuning. I have few questions regarding the price. So for an eTune its $199 and if I want a retune its $69? But first I really need to know if my car actually needs a tune. My current mods are AEM Sri, P2R Spacers with 2 gaskets and Invidia Q300. I have a Invidia header sitting in my storage for over 6 months and the only reason I havent installed it is for the added expense I might have to spend with mounts. So, Im not sure if I want to install the header and get a tune or get a tune now and install the header when I feel like my car needs more power. Im also worried about the sound after installing the header. What should I do? Thanks in advance.