Dude...I know you are trying to search, but it's pretty well accepted that F.I. has the highest CBE gains, while ART pipes make more power than any other TP or HFC. The more cells, the more stuff is in the way of airflow which is why people probably told you that the 200 cell will give you more gains. I don't know about other TP's and most everyone is going to vouch for what they have as the best.
The best thing to do is start at the beginning of each forum and look at each page and see what others have gained or not gained from each product. Search on youtube... there's videos of just about all exhausts, some of them on a dyno or with dyno numbers and some just giving you sound clips and videos.
F.I. is a great company who makes great products and that is why they have about an 8-12 week waiting period. With the CBE they made 20 whp and about 11 wtq ... with their test pipes they made about 8 more hp and I don't recall how much wtq. Again... searching is the best way to go about it. You even said yourself the other day you were just going to drive the car for a while and break it in before you decided what you wanted to do. That is the smarter thing to do, so while you're at it, save your money and buy what you want, but look at the research, reviews and dyno charts. Most of us have done it. No one can tell you what YOU will like for YOUR car or YOUR taste or what is to loud to YOU.
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