+1 I probably have the most N/A parts on my RA in the US and i am far from needing new bigger injectors. I can change pulse widths because i have a bi-directional scanner which i use for high performance transmissions and FI v8's. For an NA setup there is no need for bigger injectors/fuel rails, any of that. They stock work great for NA. I haven't been able to max the engine out NA wise but when i do i will give input on what works good and what doesn't. I am not going to argue with the PR guys because they do know their stuff and they are mostly right.