Yea I agree, you won’t notice it on the street. With boost, loosing a few hp is no big deal. You just add a pound. But at the track when you want it all I’d just take it off. I bet the shape of that cobra elbow will cost a few, I’ll guess 8-15 hp, but like I said worth it and you won’t feel it. I’ll send Richard Holdener a text and see if he’s ever tested one.