I agree except for Dinan, I have never seen an M5/6 dyno over 700whp on the Dinan intake. Also the benefit of the cold air front mount intake is that you are only sucking in cooler air from outside of the engine bay and you get an amazing sound. The stock intake can be sealed to only suck in air from outside, and with scoops attached, and performance filters you can push over 700whp with supporting mods so it comes down to preference because you can do the same with the cold air intake and there have been no issues like raised engine temps so you go with what works for you.
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