This is what i worked on yesterday at my shop. The noise is not bad from under 2800rpm. WOT sounds just like a 350z with exhuast!! IMO. There are a few rpms from idlel to 300rpm that have a drone to them. All in all, not bad. I do like the tough sound i have.

I cut out the rear cats, and resonator. All aluminized Steel and mandrel bends, fully TIG Welded.

Performance, was a bit weird, i think it had some more throttle response and a hair more on the big end. mid range is about the same. IMO. I believe with the pulley and ecu, i will see all the exhaust gains.

I have modified my airintakes, K&N's, ported and polished my Throttle body and upper intercooler plenums, and added bigger tires in the rear. I have more pics of the calipers i coated and tires if peeps want to see.