We all know the Harley-Davidson Sportster 883 is a rather light bike for a Harley but has power issues compared to most of the big bikes we ride. This can be an issue until some sort of power improvement has been made through the many 1,200cc “big bore” kits that are available today. We have seen many kits at all different price ranges, and yet they all seem to do the exact thing: give you larger pistons and cylinder heads without any case boring to get the job done. After doing some homework we found a kit that Lowbrow Customs sells for right around $500 and comes with everything you need to up those ponies on that 883 Sportster of yours. Each kit comes with pre-fit cylinders and a set of Wiseco 9.5:1 compression pistons, matching Hastings piston rings, head gaskets, and a pair of base gaskets. Yes, that’s a lot of parts for the money. Follow along and see if it was worth the savings or not.