Hello, can you actually achieve an increase in power with a fan manifold and a group A or does the engine only take a bit better gas and that’s it? I mean now reel and not these manufacturer specifications according to which you have now 30% more power *narf* Was someone already on the test with this combination (Fächer+Gruppe A)? Does someone have an expert report for V6 fan manifolds on the computer or knows where you can download them? (The content would interest me purely informative times are the crackers of the Vectra/Calibra identical? On the engine is clear but the course of the trouser tube up to the cat? Thanks to you Bimmel