+1...Always go with mandrel bends...otherwise its pointless.
As for custom vs branded....you will lose out on the R&D and testing. Granted you are also paying for the name markup, value-added-engineering comes at a price.
A way around it is to find someone with the branded exhaust you like and have your shop custom make you a replica (yes I know its blatant copying, but it is an option).
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Perf.des carbon and paint//Bride//Personal//Stillen//ARK//Jegs//Zex//RUFF//Eibach
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