What size diameter piping on the 08' Coupe Stillen Cat-back Exhaust?

[mpbclutch33]

I love the look of the Stillen Exhaust over all the rest but the Stillen site does not say what size diameter piping is used. I would image to improve performance, they would bump it up to 2.5" but who knows. Also, based on the youtube clips, it sounds alittle too quiet. Is there any way to increase the deep throatyness of the exhaust? I wanted to wait for the Artisan Non-turbo exhaust to come out, but I am getting tired of waiting.

[Loop]

I wouldn't think you gain much performance with the added resonator they use and which is causing it to be quiet as thats what a resonator is for. You could delete the resonator or go with there axle back and straight pipe it from the cat. Goodluck with your decision

[FGFCacoupe]

Ive heard the Stillen in person, and it does sound a lot deeper than the videos on youtube. It also does look good, but with that being said ive also seen the Greddy in person, and in my opinion it looks, and definately sounds better than the Stillen. Actually the guy with the Stillen wishes he had the Greddy so. Just personal preference hope that helps.

[FGFCacoupe]

Oh,and performance wise I would definately say Greddy. Both of the guys with the Greddy and the Stillen have manuals which I see you have so. Ive also seen and heard the Artisan in person.

[mpbclutch33]

Oh,and performance wise I would definately say Greddy. Both of the guys with the Greddy and the Stillen have manuals which I see you have so. Ive also seen and heard the Artisan in person.

You have seen and Heard the Artisan? How does it look and sound compared to what is already available? I love Greddy, but I am just not crazy about the angled look or the blue tips. Let me know about the Artisan please. I have e-mailed them several times, but they just keep saying "Soon".