Like Mike wrote, the welds are a bit sloppy and I got it used so its not in perfect shape. I would of been as happy if it wasn’t polished. I changed so much at once with my setup that its kinda hard to measure. I don’t have unlimited access to a dyno so I have never put a stock one up against a Magnus. But the DSM one is proven to be better then stock.
I’m pretty sure TurboTSi went from a stock to a Magnus and felt a considerable difference especially top end. He can vouch for it.
The issue here is that the Evo one is designed pretty well from the factory. It is a much better unit then what DSMs came equipped with.