I recently ordered a supposedly chrome plated Techingas 70cc pipe for my Metrakit 70cc head. Not only is the finish on the pipe terriblle, it turns out that the exhaust diamater of the pipe does not match the exhaust port of my head. So obviously, less power. Needless to say, I put back on the Metrakit pipe and it is perfect. Basically, I got suckered by a local repair shop to try the pipe and then when I didn't like it, he told me he couldn't send it back because he had to modify the mounts to mount onto my GP1. Live and Learn. 250.00 loss......oh well...
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