Roger that! I never understood a "cold" air intake that sucks in hot air!! A new intake is a a waste if it is drawing in air from the engine bay. You are better off with the stock air box at that point.Good info. IMO. I wouldn't bother with that CAI sitting on there next to the block under the hood heat soaked.
I have the K&N. Works just fine. Has that real cold air injection.
I've been running a K&N drop-in for over three years with a brand new MAF installed at the same time....no issues yet. I'm very careful not to 'over oil' the filter when I clean it, perhaps that is why?the only issue with k&n in your car is that the maf sensor won't like the oil from the filter, and it'll eventually throw a cel. it's another issue with the t7 cars.
Good observation about airflow restriction not being an issue with the turbo, but you didn't capture the whole picture. Everything after the turbo is what we don't have to worry about. However, before the turbo is still a concern. Imagine if there was a 20 foot piece of 1" pipe the turbo was trying to suck air through. Wouldn't work so nice. What the GS piece is trying to do is make it easier for the turbo to suck air in by reducing the restriction. As many have pointed out though, our cars have very little piping before the turbo anyway, and the funnel mod with an uprated panel filter is sufficient for relatively high horsepower numbers.While I enjoy the sound, I don't see a single logical reason that it would provide any kind of performance increase.
The car has a turbo, airflow restriction isn't really an issue. Honestly, I'm a little upset that I have a filter that doesn't filter the air as well as the stock airbox with a paper filter. You can look on BITOG for some air filter comparisons. The oiled filters, K&N and the like, don't filter the air as well.
And then again there's the delivery pipe between the bellows and the turbo. I've heard switching in the new 9.5 version 'King Cobra' is supposed to be worth a few extra HP, not to mention smooth out spool-up and therefore lowering that initial boost spike.It's said that the stock air box and delivery pipes are good to upwords 400HP!:cheesy: