Just seen that it is missing the baffle to. Yeah that will make it alot quieter. But in a aftermarket exhaust the Spark arrester screen don't do much for making it quieter. Stock Sparky/Baffle does though.
I have my stock exhaust from my '09 700 if you want to buy it. It had about 5hrs of use on it. Still has baffle and spark arrestor. Could send you just the muffler or the muffler and headpipe if you wanted. It doesn't have a quiet core, but the stockers are pretty quiet.
If interested I'd sell it for $15+shipping.
I fab myself some stainless db killer for my dual force 4 and at idle it sound stock. When riding it's still pretty loud for my personal liking . Looking at my pcv map I'm loosing between 10-15% in power with that setup but since it's winter here and cold outside I don't really notice with my butt dyno lol The powerband is alot different, almost lost all my low end torque but when reving, it's a beast !