Originally Posted by grizz1

If their modded motors from MMods you will have more bottom end than you know what to do with
The 086 suits the 5 Port very well, giving great bottom end and reasonable top as well. If you were looking for another pipe I would get the GO FEMCA 0801, which also complements the 5 Port well.
I run a modded 5 Port with 0801 in my buggy. We have some tight sections on our track with jumps just out of corners etc and the 5 Port with this pipe handles it with ease, and thats running a 6.5 restrictor and softer clutch to calm it down a little.
You might like to run the 086 in the buggy and the 0801 in the truggy. The pipes are similar, but I think they would be better suited in this configuration going on previous experiance.
Enjoy those motors - you will be very pleased with Mark's work.

Originally Posted by zJatoRad

I think you'll be fine with the 5PT + 086 combo. I have tried the 086 and the 0801 on my stock 5PT and I feel the 086 is smoother on the bottom than the 0801 (still strong though). I feel that the Go 0801 pipe pulls harder with better run times as well.