Damn guys, I gotta say. Best money i've spent on the car so far. It sounds much more throaty and much less muffled then before. The highs are crispy and the meds have been amped up a little bit. The sound really comes alive at around 3-5k rpm.
Performance wise I do think i'm seeing an improvement. My tires spin a lot easier now and it feels like i've got more torque. I was cruising home last night with music cranked up high so I couldnt hear the engine, it still felt more responsive. After looking at the 2ndary cats (ill post pics later) it does look like the backpressure was too high.
Bottom line: Driving it is more fun now
I was at my buddys bday party last night getting trashed in long beach and all I could think about was cruising around in my car, lol :drive: