back to stock

Having recently installed new TTI headers, I found the 90 degree oil adaptor to be a real challenge getting the headers on/off and seems like less room for the oil filter. After conferring with TTI, they tell me I don't need the adaptor with their headers. So, to make things a little easier for maintenance, I want to convert back to the stock oil filter configuration. Is there a kit or part number that will give me what I need to convert back?
Thanks,
Bill