Nice. I have just ordered the softronic tune for my Turbo S given the ease of installation and ability to upgrade- used the durametrics cable previously on my 996tt that was tuned by Tod Knighton .and hence have decided to go back down the same route The turbo s acceleration was disappointing at a recent track day and I need to get it going harder. Sorry for the ot.

 

Hey Pippuri, the 2ndary Catbypass pipes are an easy and simple way to improve the Cayenne's Power and sound, without affecting drive-ability, warranty or emissions. They are an easy 1.5 hour install and require simple tools that you can do in the comfort of your own home. We offer Primary Sport Cats and Catbypass pipes for the Cayenne Turbo only and I only recommend doing them if you are also doing the ECU Flash to ensure proper engine tuning and no CE lights. Let me know if you have any questions and if you are interested in doing the bypass pipes, PM and I will offer you a nice member discount on them.
thanks,

 

I have an 05 CTT, and I keep seeing that the Fabspeed Bypass (with no ECM upgrade) will result in less horse power then stock. is this true? can someone confrim the HP gain or loss.

 

I’m thinking of of doing this mod but still want the stock loudness at idle and driving. Will this make it a lot louder?

 

Still very civilized exhaust sounds cruising around town. Just better rumble. Also when I sold it, I put stock pipes back on and damn what a difference. Turbo lag was crazy bad.