1990 kdx 200 sr after market expansion chamber up grade

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Nov 13, 2020
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#1
My 1990 KDX 200sr expansion chamber bolts on to the head. The E2 model has 2 springs to hold it on do I have to modified the E2 chamber buy cut and weld the bolt on flange to get a upgrade exhaust system. Does some body no if there is a system for the SR model ???