What type of air filters do you guys use?

The filter on my car was opaque and filled with dead bugs so I bought a new one (STP). I thought this car dogged when it had the old filter, I can barely make it uphill with this new crap.

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1982 240D.
My name is Michael, and I am an 18 year old binge-drinkin', cigar-smokin', novel-writin', all around unsavory and unnattractive guy. I tell long-winded stories, and I only shave once a week, although I've had to do it every day since I was 16.