Originally Posted by mugenb46

the JP3 is very nice on the 5 port great bottom end feel and killer top, it will be alot of motor on the 28 with that pipe. I like the 086 on my 5 ports and .25 6 ports, so use the 086 on both i think, they keep them controllable and smooth with out losing the bottom, both engines have plenty, the 053 will get you in trouble with those engines if your racing IMO. The 053 is the choice pipe for the 7 port.

I have 2 modded 3 port race engines with team mods available.