Thanks for that info about the TTI shorty headers... their pics on their website shows it clearing the oil filter much more than your experience... my passenger side Hedman long tube clears a shorty filter right on the block and if I bash it I could get the tall filter on... so... hope not making mistake over there. On driver side I’m fighting my pitman arm after installing new not demolished engine and trans mounts, solid poly mounts now. I know with any header you trade problems. The shorty headers seemed like a good idea and all my current headers are is in the way... and in driver side the headman blocks the spark plugs on the rear two of that bank... TTI only ones that offered the tubes that go from the header to under the car, the other ones didn’t on their shorty headers... is Dougs headers better on their shorties or am I just making myself crazy...