>I need to replace the exhaust system in my S III from the headers back. I
>would like to open it up a bit with hurting the limited torque. Any words
of
>advice before I head down to the muffler shop? Thanks
Well, I just asked the same question. There is not an exact consensus Our
resident guru Jarrid suggests not going over 1.75" or else risk loss of
scavenging from too little velocity. Note also that unless you enlarge
your exhaust manifold itself, it will serve as the smallest bottleneck,
thus making any change to the rest just an exercise in making the car
louder (which is what a the mechanic on my 911 told me). I do know a guy
who builds racing Lotuses. He suggested 2", and is completely satisfied
with the 2.25" on his street/race Lotus Elan. I have yet to get it done
since it hasn't stopped raining long enough for me to drive the car without
a top.
Jay
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