I have heard lots of good things about the 1005 pipe. But for $50 for a hardcoated dynamite 086 its pretty hard to beat. The dynamite pipes also have a good stinger support. I have a team driver that likes the Jp-3 pipe on the 5port as well. But from what i have seen and tested the 086 is a great match for the 5port.

AZTman don't worry the JP-2 won't hold you back I ran it for a long time on the 5 and 7port engines. Didn't give me the top I needed on the 5 and didn't get me the bottom i needed on the 7, but these engines are not extremely pipe sensitive so you can get same results as Tomb from a lot of different pipes.