Holy CRAP STP SUCKS! By far the Worse filter in the world in my opinion, and thats even worse than Fram. The shop (Midas) changed my oil once (It was cold- and i didn't want to roll around on the floor, and they were doing it for only 14 bucks) They used Cheap Havoline oil (which i understand is good) And an even cheaper filter- STP. The stp filter is LESS than HALF the size of not only my OEM Mann filter, but every other filter on the market that made the filter for my car (1997 VW jetta 2.0). So, when I changed my oil after that, my filter is mounted under the car, i actually had alot of trouble getting the filter out because a piece of the frame under the car was in the way, and the filter was so small it was actually behind it, so i had to remove the frame. Then- the filter was so small- that the filter wrench i always use on the car was too big for it- so i had to buy a new filter wrench. I checked if they put the wrong filter on my car by accident- i went to autozone and looked up the part number for the STP filter that fits my car- and it was the same useless filter. I learnd two things that day: Never let Midas change your oil- no matter how cheap.
And Never use STP filters. out of the three- i would choose bosch