u/CancelMotor4534

I recently got this 07 gsxr 750 and the owner said this full system was installed back in 2007 when the bike was bought, there seem to be a db killer inside the muffler which I cannot find any plug to remove it, I’ve tried pulling it out with pliers and i think it might just be welded in tbh. Any tips? The exhaust does sound good but it’s just way too quiet