I race yesterday with one of my friends.The race was from 2nd gear and 40km/h to 250km/h.My car has Tubi exhaust and Evo intake.The difference of the 2 cars was huge!

YouTube - cayman s( b16b ) vs cayman s

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http://www.youtube.com/watch?v=2_birH1Hy28
http://www.youtube.com/watch?v=X94_lfA1Df8

I have a tubi, and it rocks ! I am not surprised at all at the results. Ill go Tubi any day of the week. Just the sound alone is LOCO mucho LOCO ....

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The first South American modded reptile ~ 350HP - 4.4 sec 0-60 and 12.7 sec 1/4 mile. But looking for extra 100 HP!

Yea! real happy with my Tubi too!

I called Tubi Italy. They told me that their exhaust only adds a little power. It's mostly about the sound only.

In Athens the dealer told me +8 to 10ps.

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http://www.youtube.com/watch?v=2_birH1Hy28
http://www.youtube.com/watch?v=X94_lfA1Df8

I guess until someone posts Dyno results the true HP gain will remain elusive. Would not expect great gains because it is exhaust only - no headers.

Yeah Champion in the US told me unofficially that it adds around 7-10 HP....but surely it does something...but even if it did not, the sound alone is worth every penny of it. Everyone loves it, all say is the best exhaust note car around...not that there are many here to compare. It has a higher pitch note, similar to a ferrari. If you add headers, you will certainly add more juice. I dont care about dyno for now, I see it on the street. There are no 911 or even a 911S (tip) that has been able to match my 0-100 sprint. The 911 turbo is another league, what a sick car that is. Kudos to Tubi.

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The first South American modded reptile ~ 350HP - 4.4 sec 0-60 and 12.7 sec 1/4 mile. But looking for extra 100 HP!