We've had these DP's out about 1.5 years longer than the BMS and judging by their import records, we have 2.5x as many of them out there in the market. We have quite a few of these on 1M's
We use an investment cast inlet/mouth which is superior to the conventional pipe/flange setup in terms of flow, quality and consistency and we're a bit less expensive, even more so when coupled with our other VRSF products. Lifetime warranty and fitment guarantee still applies.