Thanks Bee! I really appreciate all the help and guidance youve provided over the course of the project.

I am almost certain that I have the older S6-style ones. My mechanic swore that I had precats on the dps when he did the manual conversion on my car, while Scotty said that my car, being an early 2000, only came without precats and was equipped with the bigger S6 exhaust manifold. Well, Scotty was right; my dps had no pre-cats. So, Im assuming he is right about the exhaust manifold too, although I haven't been able to confirm this by sight. I went on the assumption that I had the S6 style ones when I planned the engine mods. If I had the smaller ones, I would think they would be a bottleneck in the system, and porting the heads may not have much impact. Hopefully the S6 style ones are good for at least 425-450hp before they start choking things off.