It does affect it, you need to make some changes as you need more fuel volume with the FTW purple. Lots of hype about it which I didn't believe, and after using it my stance is that in an NA application it doesn't live up to the hype. It's worth a little, but it isn't much, not worth the cost. My understanding is that a forced induction application will see a much larger benefit, but I'd have to experience it myself rather than taking the word of someone trying to sell something.
Go price some C25 or C45!
Never. That guy Jim spammed the hell out of the Shell stuff everywhere, even tried to deny right here on this forum that he was spamming for them, then it died a quick death, now he spams the Gulf everywhere. I don't buy from lying spammers. They can keep making their claims about being better than VP, yet they can't keep a steady supply of the stuff, have to change the name, meanwhile VP fuels keep winning races every week in every form of motorsports, just like they have for decades.