Hi boys! I have a 2004 SpecV and have a lot of mods on it, including AEM CAI, HotShot 4th gen header and GReddy Evo 2 catback. The reason I mention those is because when I accelerate hard, I hear a metal vibration sound between 2000-3000 rpm and it's really starting to get on my nerves. It's like a heatshield rubbing sound or something... We checked for that but everything sounds ok. We checked for header leaks or exhaust leaks, and nothing is wrong. I also took out the useless bracket after the resonator that is sitting there doing nothing (for the exhaust line not to fall on your head I guess when you're changing it) and this still didn't solve the problem. Could it be my CAI rubbing on the body part where the CAI goes into the wing? Because there the CAI is tooching the metal... Any ideas? Has anyone experienced this? It's realy an ugly sound and I hope there's a way to fix this. The sound is pretty raspy and comes on and off between 2000-3000... It's like if it was following the movement of the body and tires (riiiing-riiiiiiiiiing-riiiiiiiiiiiiiiiing)... Please help!