I have now come to the conclusion on going with the New Invidia GT200 exhaust. Those tips and the sound are awesome. I have also heard it makes better hp then the first invidia exhaust system. I talked with Jeff at Evolution and he highly recommended them from installing them already on a TT350Z. Going to call Jeff when I wake up and order them. I am also looking at the Helix testpipes. I wondering if I want them or not. Maybe Xerds if they work nice. Also was thinking about getting some headers. I am thinking about going with the ones that summit is selling for cheap price (the DC's), but want a little more hp then they will give me. Almost worth the money to get something different then them. I mean they only got 14hp and 5torque with both headers and exhaust. Stillen makes that just with Headers almost.