K&N air filter, is it a waste of $55.00?
#5
If you think you'll end up with a TTDA, it's a waste of money, if you don't think you'll end up
with a TTDA, I'll sell you one for $30 plus shipping... It was a waste for me, since I ended up getting a TTDA (which did give a performance increase, whereas the K&N did not). However as a useful replaceable filter, they are nice. They will save you money if you keep the car long enough.