I personally would go with an SCT tuner (in device and the person doing the tune) because the datalogging is nice to have should there ever be an issue, and being able to actually dial the tune in to the car itself is very nice as well. Along with that, LMS "brand parts" are generally just rebranded versions of the other aftermarket parts available, possibly with slight visual changes, and rarely offer more performance than the other options, while costing more due to the "name". I would recommend shopping around for the parts you want, as you can save a lot. If you have the patience, a lot of nice used parts will pop up on the classifieds here from time to time.
