the SPT parts will not have any warranty coverage, but will not void the factory warranty for your vehicle.
Essentially the question is not "what won't void my warrnaty" but rather "what can I get away with?" It really depends on where you take it. Most dealerships operate on the "if the mod didn't contribute to the current problem up for warranty review, then we'll fix it policy" Obviously they won't fix anything that isnt stock, so if (by example) your aftermarket BOV is installed incorrectly and damages the stock intercooler mounting points, they won't pay for either. Its all up to the local SOA rep though. if your car looks like a track prepped vehicle and you have motor/tranny problems, I'd bet you're probably on your own paying to fix anything that breaks. If its a stock looking car with a few gauges and some aftermarket springs, they're not going to be too hard on you for an electrical problem or something.
http://www.mnsubaruclub.com/forums/viewtopic.php?t=4319 refer to this, [color=orange][b] >>>----kthxsarrow>>[/b][/color]