As of late, i am noticing that my car is not pulling NEARLY as hard as it was before. I dont even have 3000miles on it and it is feeling like my dads taurus (well maybe im exadurating a little) im getting worried. it may have something to do with the hks blow off i have. that is the only thing that i have aftermarket under the hood. i dont know whether subaru can fix this or not.