So just installed a Takegawa exhaust, and the note (especially at idle) sounds much better, deeper, etc. However, took it out on it's first ride, and there is a noticeable loss of low end torque. Cranking it high into the rpm range i'm not noticing any gains at all in upper rpms. So what is the point of this exhaust? Like many other bikes where restriction is removed in the exhaust system, this followed suit with a loss of power. I guess this is only beneficial then if you free flow the whole system and ECM flash/upgrade, big bore, etc? Not happy and will not keep it on for the sound whilst losing power.