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We're re-jetting because we have a new FMF Powerbomb header and Powercore 4 Slip on. I was considering changing to the Boyesen Quickshot 3QS. Our bike other than the new exhaust mods and a Twin Air filter is completely stock/ Is this a good move and how does this work with the hot start?
The product picture doesn't really show much and this is the first time we've ever had the carb off or done any work of this type.
Thanks in advance for all replies!

Its basically a AP cover with a adjustable leak jet , to me its overkill and harder to tune , all you need to do is the AP cover (QS1 or 2) and the correct leak jet for your elevation and mods (look in the 250X Jetting Database in the 250X forums for examples)