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My welder just completed a 997.1TT 3.0 catless X-Pipe to go with some very lightly used and reconditioned 3" dual tips in brushed stainless finish. Contact us for a "demo" discount deal on this system! It's ready to go...
Recently thought about this thread last weekend while I was converting my catted system over to a Catless system for the track. I haven't had a second opinion on the system since going with a straight pipe system with Cats.
Although I haven't ran this setup at the track yet, my street driving experience has improved with the windows down. Cabin drone is not near as bad. It was mid winter before the conversion and I am a slight woose when its cold outside hence the window down test not happening for any length of time.
I'll post a video of a pull with a cat setup and without a Cat setup from the same location this weekend (weather pending.)
Havent drove the car hard enough yet with the windows down yet to form a full valid opinion.