I remember an article about Byron Hines's research into exhaust flow and headers. Even going so far as to study
ballistics in his search for optimum exhaust flow. As I recall, his Pro Stock motorcycle had a 'pickle-like' device in the collector.
I had some Belangers and seems like the pickle wasn't really
obstructing anything, just filling up the gap where the 5 primary tubes come together at the collector.
- Though my memory has let me down before ..!
