Well the 18" body would be far better to me. I just don't want to have to change the muffler a third time that's all. I'll hop back on youtube and try and get a sense of the 18" magnaflow compared to the 40 series flow. Is there a big difference between the 4x9 oval and the 5x8 oval? I'm thinking the 5x8 will be a pinch quieter? Thanks for the responses so far
Last edited by canadian_screw; 03-20-2011 at 01:49 AM.