I'm only looking for superior intake resonance and in-cabin sound. I do know that aftermarket intakes are just a wash, power-wise.
You can PM me if you are too embarrassed to admit you tried one of these systems in public. I am seriously thinking about taking the eBay plunge on one of these carbon intakes, which are listed as a "Gruppe-M Style" systems.
Have you, or do you know someone who has tried one of these systems? What's the sound like? Any CEL issues?