My butt dyno felt these intakes were putting down more power, nice to see that the dyno agrees with my butt.
You will really notice these intakes open up past 45mph when air starts to flow well in the engine bay. I agree some nice heat shields would help even more, ducts will work too but I am not cutting holes in my Z. I also think once I get the Berks High Flow cats the car will really start putting down some more noticeable gains. Results should get a lot better when the car can breath in and get the exhaust to flow out better.