Originally Posted by mwm5094

There is a thread around here somewhere where I was reading the cons. Granted that it was wide open, no cap or filter, and people logs were different, mpgs got worse, etc.

Originally Posted by Leviman

When I pulled mine off my 2.5i (not sure how that stacks up vs the turbo cars) it felt slower in the lower end, also a friend following me told me I had black smoke when I floored it (bogging like no other). I have a fairly mild tune on it (little more fuel and timing in the low end, feels better, even A/Bing it), but not that severe. It makes me think it tells the MAF that it's sucking more air than it really is. I should have logged it. Reminds me of the same thing that people trying to do a cold air intake say.