93celicaconv
Member
There is a thread in this forum regarding a person who acquired at GT4-RC from Japan and had questions regarding his catalytic converter. It sort of drifted into gutted catalytic converters a bit.
What I would like to know, from those who have done this and have some experience regarding an ST185, if someone wanted to gain a bit of torque and/or horsepower, and many have went to replace their OEM catalytic converters with a de-cat downpipe, but some have gutted their own OEM catalytic converters, is there any performance benefit by doing either (compared to leaving the original catalytic converter in place)?
If there is a benefit in removing the slight pressure drop across the catalytic converter, is there any benefit in a replacement de-cat pipe being installed vs. just gutting the original catalytic converters and reinstalling it? I'm thinking if both methods are about equal in torque/power benefit, why are so many buying de-cat pipes instead of just gutting the OEM catalytic converter?
What I would like to know, from those who have done this and have some experience regarding an ST185, if someone wanted to gain a bit of torque and/or horsepower, and many have went to replace their OEM catalytic converters with a de-cat downpipe, but some have gutted their own OEM catalytic converters, is there any performance benefit by doing either (compared to leaving the original catalytic converter in place)?
If there is a benefit in removing the slight pressure drop across the catalytic converter, is there any benefit in a replacement de-cat pipe being installed vs. just gutting the original catalytic converters and reinstalling it? I'm thinking if both methods are about equal in torque/power benefit, why are so many buying de-cat pipes instead of just gutting the OEM catalytic converter?