finally got to run the new jammin x2 with .25 6 port/hong nor 2027 and it had tons of bottom and little top so im searching some more for the next best pipe. it was running alittle hot still like 280f other than that nothing else. i may go back to .21 for truggy but dont know if 7 port would be ok in truggy or not ? let me know what everyone thinks. i have ran the .21 5 port and ran ok but not balistic like my .25 is now. thnx will g