This mod go me 35 MPH on my 1980 Honda express. The mod is cut a hole in the side of the exhaust, and drill some holes in both of the pipes (see pic). Then I made a stainless steel cover to fit over the hole, and sealed it up with some RTV.
This mod go me 35 MPH on my 1980 Honda express. The mod is cut a hole in the side of the exhaust, and drill some holes in both of the pipes (see pic). Then I made a stainless steel cover to fit over the hole, and sealed it up with some RTV.
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