the addition of the Fuji Y-pipe makes it louder right?

Only a little bit. and it's only loud at WOT.

codeflux, if you don't mind, from what vendor did you purchase your Fuji exhaust? Thanks.

things that are better asked over PM. all info you need is in this thread:

https://g35driver.com/forums/intake-exhaust/56804-changed-stillen-cat-back-fujitsubo-legalis-r-side-side-pics.html

feel free to ask any additional questions about my Fuji there.

I can't decide to buy the stillen or the fuji exhaust. I want the performance from stillen but the quietness of the fuji exhaust. However, I have dynomatted my trunk and back seats and as of right now, I can barely even hear my stock exhaust. Does anyone know if you still get droning or if the new stillen exhaust is still too loud even with a dynomatted car?