My curiosity about how the early style intake manifold compares with the later model got the best of me and I acquired an early model manifold to flow test and compare with the data from the late model test.
![Audi B5 S4 old style intake manifold](https://myaudis4.com/wp-content/uploads/b5_s4_old_style_intake_manifold_4.jpg)
My curiosity about how the early style intake manifold compares with the later model got the best of me and I acquired an early model manifold to flow test and compare with the data from the late model test.