Hello, I'm new to this forum. I posted this question yesterday on the Sube Newbe section but didn't get any response. I have an '08 WRX and have been changing my own at home for awhile. I started using the longer oil filter (WIX 51334) instead of the little short one that is OEM. I do notice that, because of it's length it is colser to the exhaust heat shield. Does anyone think that would be a problem? I do put in 4 1/2 quarts of oil to compensate for the larger filter.