FabSpeed exhaust install

[Cloudsurfer]

So, I purchased the FabSpeed exhaust from Maxster on the board- Much thanks for a great transaction and a fun afternoon tasting wine and eating Sea Bass.

Now for the exhaust. Installed it today. The construction is absolutely gorgeous on these parts. Install went very well as well. Now the problem. FabSpeed claims this is a "no resonance" exhaust. Well, apparently that is not true, at least on my car. I have significant resonance between 2000 and 3000 RPM, not at all what I expected. It sounds great during spirited driving, but is obnoxious at the aforementioned RPMs while cruising.

Now, what I'm wondering, is will changing headers improve this situation at all? FabSpeed did test their full system when they stated that, so might that have something to do with how they claim it to be a no resonance system?

Patrick