[LBBM2]

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Do these benefit versus cost?

[X_Drive]

For port injected NA cars, it is shown to give an slight improvement in HP, TQ and fuel economy. It very well could do that with DI and Turbo cars, however b/c everything is so tightly packed and packaged in our cars, the hassle of relocating things and the possibility of having to add more parts so things fit properly is not worth my time. Especially with the S55.

With that being said, I have no objections in someone that wants to do this. This to me is the balancing act of "worth my time vs work my time away," for a small gain in the long game. IMO, I would save that money and purchase a tune if HP/TQ gains are your goal.