Doncha love it when you find out that your bike has some cool trick kit on it and you didn't even realise it.
Unusally when it's just been broken and you want to replace it
Do the stock pipes have pressure syphons inside the reverse diffuser a-la Allspeed / Micron / Swarbrick / Gibson etc..etc..etc.. or are they 'straight out to the can' ?
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These aren't the droids you're looking for.