Exaust tech?

Hey guys, I need your opinion on my exaust! Okay, I currently have a '90 Acura Integra w/ a JDM B16A motor w/ JDM auto tranny. I currently have a Middas custum 2 1/4" exaust w/ a raven muffler. I am going for the sleeper look and I have collected a dynomax muffler w/ a duel stock looking tip. I was curious of what types of gains I would see w/ this muffler and a mandrel bent 2 1/4" exaust w/o the cat. I was ayso curious how loud this will be. My current plans are to turbocharge the B16A @ about 8psi w/ dyno tuning, but am waiting to save some money so I can get a few runs on the dyno to tune it. Please give me any opinions that you may have on my plans and exaust.

there's only one way to find out how loud it is...

seeing as how no one has that kind of muffler

probably 2-5hp... if you're going FI I would recommend going a little larger then 2 1/4 though...

I want to keep the sound supressed for a sleeper look, hell I still even have the OE ride height w/ H&R springs and OE alloy wheels w/ falken tires. This beast needs to remain conciled. So I went w/ 2 1/4" exaust. Plus it is good to about 250hp on turbo before it becomes to restricyive.