How loud is it and how much does it weigh compared to stock?

 

I have the RSR TurboBack and is louder (with silencer) than most exhaust out there but it sounds sweet. Without silencer, just ridiculously loud but I like it
the RSR is not the lightest b/c is not titanium but is a bit lighter than stock. I would recommend it

 

I have the catback. Personally, I don't think it's that loud, althought it's definately louder than stock....I think I just notice it more because it's deeper. I know someone had a soundclip of it somewhere (It's in THE EXHAUST THREAD I think). If you want to hear it just PM me and I can try to get a clip of mine, or I can like hold up the phone next to it or something.