In order to accommodate the larger than stock oil cooler (required to operate in Arizona) I installed I had to fabricate a bump out to allow for movement of it during engine start and shutdown. I wasn't crazy about this solution but I was told for certain the smaller stock cooler would not suffice in the 110F temperatures we see here in Phoenix during the summer time months and this was the only way I could use the wider cooler in conjunction with the plenum I made.