I have a 82 SX/4. When you used the 87-90 tubular exhaust on your Eagle it was the HO exhaust manifold. right? This I have. Did it match up with the existing down pipe that goes to the cat? If not. What pipe did you use? And did you use the HO gasket? Also have this. Did you have any problems with the manifold gasket? From the way I take it I can use a plate to cover the EGR opening. Have this too. Can I use a a pipe plug in the hole in the underside of my intake manifold where the pipe runs from the exhaust manifold? Any other problems you know of that might arise? Thanks 1@xxxxxxxxxxxxx www.BillAllen.net