If you don't want to buy the Werks pipes, at least get the 2035 from any brand, is not expensive and you will unleash must of the power and run time of this engine. Back in the beginning of this thread the JP-3 was test and it was a ok pipe, not much bottom poor run time. Can't remember anyone testing the 9886, try the 9886 and report your feedback. By experience there is nothing like the 2013/2057. I can't say anything about the 2058 , weather too bad to test. M2C