K&N filter
Peter,
I have the K&N in the 1150 GSA, my F250 Diesel Truck, and wife's Explorer.
Reason- don't have to buy filters.
Does it improve performance- I doubt it. I think there was a test done on the RT site where it made no difference on the dyno. I just like not having to pay for new ones every time I get in the mood to clean it.
David Major
Charleston, SC
'02 GSA, '03 LT