depends on what you want for power and if you are using it in a truck or buggy , the 2013 works VERY well on the plus 4 , the 9886/41021 combo rocks , the 2060 not the best but ok , jp-2 ? um no thanks , the ofna 053 is ok , works pretty good , dents VERY easily and when it gets out of shape performance is reduced dramatically

there ya go

my personal opinion out of those is 9886/41021 in a buggy but also works well in the truck , the 2013 is very similar in performance with better low end and one hell of a raspy sound