Hello together, for my new addition (1974 Corvette with 454 Big Block) I am currently researching for the purpose of a new exhaust system. Currently there are fat sidepipes to it, After Market and in Germany certainly not allowable. Now I have looked around something. There is on eBay a dealer, and also at Ecklers an article, which offers an entire set quasi from Krummer including pots. Click hereClick here again The price is actually moderate I find, The question is how is the quality? The pipes look somehow more bent than bent. In addition, the engine that is currently in the car is slightly changed. It has an increased compression of 11:1, hydraulic scooter lifts, a highrise intake original heads “processed” and a Holley carburetor Of which I don’t know the size. Unfortunately, I also don’t know much about what was done on the engine with the sidepipes the really good forwards but those were other dimensions of pipes. Is a e 2.5 inch system as they offered sufficient for this engine configuration? Or should you go a little bit bigger? Does anyone have experience with one or the other product? Besides, I’m not sure if there should be original cast manifolds again, or headers. What do you think about it? There are cast manifolds at Rockauto for 99 dollars the piece. Is that good?Link to the Manifold Or is all this crap, and you should rather have a plant made in Germany? Contact, or a rough benchmark, which costs such a facility in Germany? Many questions! I count on you 🙂 Greeting Marc