That's a little pricey but its well worth it. I was paying 6 dollars I think? It does add up quick though 10 bucks every time you pull the trigger haha.
Ok well the bore may be good, but it may not be the standard bore size. Saying it's all good doesn't mean shit.... if it's a 65 mm bore and you order a 64 mm piston it won't fly.
At 100mph though you would only hear the whistle for a short period of time before your frame collapsed and you died lol but at least he would look cool in the mean time.