So maximo in your testing does the JP4 work like a 2050? I only have 1 2050(cant find any more for sale) on my V-spec & dont want to be swapping pipes around constantly but probably can barrow a JP4 if it wont slow the bottom end power build up.The 2060 slows the power enough that I have to change the way I drive & I find the 086 pipes undrivable.I like fast hard low end & dont have much need to hold the trigger longer than 3 seconds at a time.