The most important part of the exhaust system is the dump pipe. After
the gasses have travelled 2 feet they have cooled and no longer need the
same area to travel down. After that you can use smaller, still the
bigger the better but not as much gains as the dump pipe. I would go 3"
to the cat then 2 1/2 or 1/4 to the back and a straight through muffler.
Mark Ward wrote:
> G'day listers, hey I just wanted a little feedback on what exhaust
> systems ppl are using on their turbo motors. I went to the exhaust
> shop today (from what I hear, a pretty respected one in the area) to
> organise for a system on the 1600 when the FJ20T goes in. They
> reckoned using a highflow cat converter & muffler, and use 2 and a
> half inch system all the way back. I was thinking of a 3 " system but
> they reckoned it was un-necessary. Experiences/thoughts ? Wardy
>
>
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