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I have an Akrapovic on my 25 CRF450 (not WE). I went from stock straight to Akro. I really love the looks and sound of the Akro. Honestly, it did very little (good or bad) to the overall feel of power. Maybe a little loss of bottom and some stronger mid-range. I have vortex as well so that changes the power way more than the exhaust did. All in all, I am very happy with it.
How do you like the vortex? I just put a full pc on mine and love it so far. The bike is incredibly smooth so I’m not sure I even need a vortex yet
Sorry I missed your question.
I feel an ECU is the best bang for your buck on most bikes. For me, the vortex added more grunt through mid and top and really wakes up the motor without loosing the smoothness and connectivity.
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