Written by RC and i am depending on this statement as well as the smile/happiness of people worked, with mentioned brands ... This is a fact for me I take this as a support for my words... I have nothing against Tubi or any other brand... "I still stand to my words. The Cargraphic exhaust has been developped for the 9979 Turbo together with RS-Tuning, the manufacturer of the exhaust is the same company which manufactures the limited production exhaust systems for the Cup cars. So in my opinion, judging by the 996 Turbo version of their exhaust, this is the best aftermarket exhaust you can get for the 997 Turbo. They even make a 21 HP power and 20 Nm torque gain claim but I would be careful with these claims since the increase may occur only at a certain rev range. I would be happy if their exhaust doesn't actually reduce power, something which sometimes happens with lots of aftermarket systems for turbo charged cars due to the changed backpressure.
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Guess RC clearly explains it very well at this link...http://www.rennteam.com/showflat.php?Number=287132
For 360 Kreissieg, even Tubi owners with that car say, wowwww, again.... Better in terms of experience around me...
Here is the link,
http://www.youtube.com/watch?v=BeAELrHXUeYAnd below is what a friend of mine in US who used about 6 different systems in his F360 quotes.... "As for the 360 system, it's (Larini Stystems) richer & beefier then the Tubi....but unlike the Tubi it opens-up and sounds great with an escalating pitch/tone as the rpm's soar. It does peak with an F1-shrill, BUT it's not overly loud and obnoxious as the XXXX.(Another brand, dont wanna get into another argument :-) There's a reason I chose it, I feel it's the best of all worlds."
Thas all i want to share about this issue... Have nothing more to say...Once more, all written depending on customer /user experience... Thats is the most important support for me...Thnx again....