upper elbow adapter, egr adapter, is correct. And if you havent installed it yet,it"s best to smooth out the runners, those intakes are not made as well as the Edelbrocks and the casting sucks, and go easy on the upper to lower intake bolts, they strip very easily. The Typhoon is a Chineese made clone of the Edelbrock Performer RPM, and you might loose a little low end without some good flowing heads. If I had to buy an intake over again, I would spend the extra bucks on the Edelbrock, because of overall better quality, my 2 cents.