Originally Posted by darrinps

I agree with all of this but let me say this (and I am gonna catch flak I know), all these peak power measurements are next to worthless on a car driven on the street. One needs to look at the total area under the curve of the useable RPM range. My guess, and no I have not done the math, is that the K&N drop ins (or in my case the AFEs) and HKS tubes
are even closer than that.

Originally Posted by nuTinmuch

Some of you guys are crazy. A dude comes on here asking for the aftermarket to give some validity to their claims, and you say he's lazy?

The sort of **** the car aftermarket pulls on consumers wouldn't fly anywhere else.

I don't think he (or anyone else) is looking for real world track time comparisons. He's just looking for base statistics that are a crucial part of all of these components.

I mean, imagine for a second if Intel or AMD didn't give consumers info on their chip and just sold it as is? Or if an electric guitar maker didn't tell you what sort of pickups you were getting? Or if you bought food and they refused to tell you the ingredients? You get the picture.

It's pretty ridiculous that wheel manufacturers are shady with weight -- especially when they are in the forged market that basically markets to performance buyers. Same for every other type of performance part. I'm not asking for comparison tests -- I just want to know basic figures.

Originally Posted by Red__Zed

They tell us what we are getting, though. Dyno gains will vary from car to car, and so there isn't really an answer. You wouldn't expect a pickup maker to advertise the exact signal gain that will be experienced in your situation, and AMD/Intel can only tell you how the chip performs on its own.

There isn't enough demand for companies to bother extensive testing. Stillen sells plenty of intakes without much documentation, and they would sell only a marginal amount more if they showed the results of extensive testing.
Most people are more concerned with price than performance. Would you be willing to pay an extra $100-150 for intakes just to have documentation on them?