Yup, i got a 3" from the turbo back with no cat or resonator w/ N1 courtesy of Mr. Miko and let me tell you... you can definitely see flames out my tail pipe when i get on it. It sounds good too. It is really loud. But has a nice throaty sound to it. I get compliments on how good it sounds regularly. Well unless it's when it is backfiring.
Yeah I agree its loud. I have that on my NA car right now. If the turbo guys say its loud just imagine that on a NA car. I'm gonna get a silencer soon hopefully that will make my car more driveable.
Its sounds really good when you get on it though. Kinda of a growl. When I floor it under bridges its the loudest angriest 4 cylinder I've ever heard. If you want mean you can't get any meaner than this.
I had the Greddy exhaust before I went to the 3" catback and I agree the Greddy was way louder than with the N1. I have 2.5" downpipe and 3" catback with no cat, but I do have a resonator and a silencer, and it's quiet until the higher rpms.
I too am running a 3" w/ a N-1. Yes it is loud as hell. Put in a resonator, still loud as hell. Pulled the resonator, and put in a Magnacor 'Spiral Flow" in place as a resonator and it sounds 100% better.