joeybisson
Member
there are so many options for intakes on the mazdaspeed3, i was leaning towards the cpe nano, and then i came across the k&n with its "25hp" gain, how come no one has ever tried the k&n?
So, the Corksport performances better than the Cobb and CP-E?
what's interesting on that graph is that where they put the measurements showing the 25hp increase is neither the power peak NOR the peak gain.
If you look at roughly 6000rpm, that appears to be nearly a 40hp gain, about 30hp at 5700. THAT is what makes me skeptical about this dyno run. As most here know by now, installing a different intake, no matter how well designed, is prone to throw off the fuel trims in the ECU, which after a few days of driving around will all get nailed down tight again as the ECU's closed-loop feedback allows it to determine how much more/less fuel is needed for a given MAF voltage.
What I see on the graph though is an hour and 20 minutes to install the thing and run it again for the second run. This tells me that perhaps they didn't allow the car to learn at all and thus it is likely running fairly lean to make that much more power.
I would want to see an air/fuel graph for the same two runs to be able to make an informed decision, but I am almost certain that with time, the gains from this intake will dwindle quite a bit from this first chart and you'll end up with performance gains nearly identical to other short-ram style intakes on the market.