The 053 and JP3 should work fine on the P5 as an all-around pipe, but I prefer the original 9853 Nova. Is the 2050 an Axe Rossi or O.S.? Even at that, I don't think they are suited for that motor. The JP2 is a mid to topend pipe, so figure it would be like a 086 or 9886, which P5 also like, just depends on what power band you need.