~Would stock mufflers and no cats or precats open your 5th and 6th ports?
~would a precat and strait exhaust open the ports?

 

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anybody

 

uhhhhh well i'm pretty sure if your talking about a pre silencer yeah you could do that racingbeat sales them with the 5/6 ports piping

 

i have no precats but one main cat and it still opens up 5th and 6th ports

 

well i'm pretty sure you have a hose that goes from your ports to your exhaust and if you change the exhaust out and not get a attachment for that hose something happens to your ports i don't know what it is though. I know that my hose isn't connected and when i rev it up the top is kinda shakie