M
maxwellzx
Active member
installed the 827 NON PORTED and rode it 2 days solid in the mountains all weekend. the sled absolutely rips and its not even ported. with the computer mapping it ran a solid 8500+rpm all weekend. just screams. the machine feels so much smoother than the stock 800. its right there at the tip of your thumb all day. anyone who is the market for a new top end for your old zx get on this. well worth the coin. went down to 480 jets and looks like there is some room to go down to a 460 maybe. machine used less fuel than the exact same stock machine which did less riding than the 827. need to swap that 144 for a 163 with the extra power.
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