i posted a thread after i got my upsolute done. i got a 'custom' tune to extract some extra horse power out and will only run on 93, not 91. i paid around $400 or $425, don't remember. i also paid to ship it, but shipping back was free.

no problems removing or reinstalling. just make sure to put markers, e.g. 1, 2, 3, 4 to mark the order in which you pull the wires out of the harness.

the difference was noticeable in my opinion and others that did before and after drives on my car. i think it was the best mod i've done to any cars i've owned and would recommend much before exhaust, cai, etc.

as with most companies, make sure the person YOU are dealing with is GOOD. a great company is only made great by the people, and there always bad people trying to take advantage of you!