As for the tune, everyone is going to have a different opinion. For minor mods, I don't think that a remap is really needed. That being said, do you consider a 15% pulley a minor
mod? I certainly don't as you are severely altering the amount of air being shoved into the engine. As you start making changes to the HP, you have to tell the engine what you are doing. That being said, I really think that most people don't really understand what a remap is and should do. The hype is that you can increase HP with it. Sure, this can be done and is a side affect of doing it but it is not the only reason for doing it. What you are really doing is letting the car know what you have done to it and adjusting it accordingly. Back in the old days, you would do a tune up to get the car running better with the parts that you have put on. Well, that art is now in the forum of an ECU.
There are several remaps as Roland pointed out.
1. The one map fits all... These are the units that basically upload a generic map and don't really adjust to each engine.
In my opinion, I think that these are the worst of the lot. Every engine is different and will respond differently to these types of uploads. There are a lot of vendors out there that upload files without even looking at the original file to see where the car is sitting before making changes. Bluefin fits in this arena.
2. The uploaded file that is made from the original. This is the MTH of the group. Basically you are taking your original file and sending it in to be tweaked. This is a much better tune as they are actually wrapping it around what you have in your engine. It is a much safer tune as your file is manipulated. That being said, it is important to know that some people have stolen from vendors like MTH thus creating a one map fits all situation. If you buy from them, there is no telling what will happen. I think that this is one of the best street tunes.
3. The in car tune... This is probably the best, but also the most expensive and overkill for a street driver. (My opinion). This is where they try to meld driver to car by writing the tune around your driving style.
So what should a tune do? It should settle the engine in and make the car better driving. Increase in HP will happen but that should be the main reason for this
mod. The main reason should be to have a smooth running engine that will respond the way you want it to respond when you need it to respond.
This is my .02.
