Quick question, I got offered a decent deal on a full megabomb 4.1 system for my 2018 270 big bore SXF.
Just curious to the increase in power I could expect over the stock exhaust?
Also my bike is mapped for the big bore but at the time of the mapping I had the stock exhaust, would going the full FMF make a difference? As in need a remap for it?
Thanks guys
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