Well i went ahead and got some Dynatech headers. Bought em for the 93 Z28. 1 3/4 primaries and 3 1/2 inch collectors. These should be really nice long tubes, they were like 430 from summit racing. Ill let u know how they go as far as installation.

 

Do you have any updates on this? I've been looking at getting a set of Dynatech headers myself so some feedback would greatly help me make my decision. Did you need to get them coated? Good plug access? Did you get the bolt-on collectors too? Have you got pics of them installed? What about any tuning issues due to the lack of an EGR connection? Again, sorry for all the questions.

 

i would think 3.5" collectors are way to big unless your running some SERIOUS power on that car. the 1 3/4" primaries and 3" collectors on my hookers are great, but i noticed even with a dumped 3" y pipe there was too much flow and i lost some low end.