Perfect fit for my 2019 Taotao Quantum Tour. I didn't even have to change the manifold. I've already changed my CDI and a few other things, but as soon as I added this you immediately felt the difference in performance. I went from just under 40 to just over 60 so I'd say it's definitely worth it. And since to do this you need to be a bit fragile mechanically, I suggest replacing your brakes (pads and calipers) as well. I installed a race caliper up front, replaced the pads all around and tightened the rear idler. I wasn't happy about having to take the airbox out to use the included air filter, so I put it aside to play with something later, but I honestly don't feel like I need it.
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