We offer the SCT Programming for these cars in the form of a chip.
The chip can be programmed for just about any mod you can think of. Ycode90 is absolutely right. The program with the best performance is the one that will net you the best fuel economy.
A cool thing about our chips is that once you buy them, they are yours forever. I keep all of the tunes I build and archive them on my server. I've got about 10gigs of tunes so far. If you get the chip now, then want some other modification later, I can go right back to your tune and adjust the tune to match your mod. So if you need a new transmission at some point, you can get one or our Custom Transmissions and order it with the lower 3.99:1 gear set. Then I can go right back to your tune and make the necessary changes to the programming to account for the gear change. For simple changes to the programming such as this, we do them at no charge when you buy the upgrades from us.
So if later on, you want to get one of our new Turbocharger setups, you've already got the chip. It can be reprogrammed to account for boost and fuel in you application.
The point is that there are a lot of options. The Tweecer is for those that want to learn how to tune for themselves. The LPM is comparable to our SCT tuning, but there are limitations on both sides. Call the folks you want to buy from, talk to them and make an informed decision for yourself.