Dillon

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

Dillon

_

Dillon

anybody

RX7freak08

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

jdm_emperor

iTrader: (6)

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

RX7freak08

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