No problem running 93 octane on the 91 tune. It will get even better performance. Around here 91 and 93 octane costs the same so I go for the 93 when running a 91 tune.

 

When i requested from Autoanything. Should you chitchat on the net before you acquire they may normally offer a lower price for you.

 

That's what I did. I did a chat and told them what I was looking to buy. Then they asked if I was ready to order and I said I'd wait for one of their coupons they email out. They offered the discount right then. Then they create you a link to a "special cart" so that you're discount can't be used on whatever. It's just for what you're trying to buy at that time. I just saved $90 on the exhaust I ordered yesterday.