A good friend of mine is trying to decide which after market exhaust he should go with for his 01 360 (Tubi, Eisenmann, Hamann, Kreissieg...)? Hes not really concerned with performance figures so much as a great sound! Price isnt really a concern either, just nothing completely off the wall. Which do you prefer? Very open for any suggestions, and sound clips and or links would be even better! Thanks!