Quote:
Originally Posted by v8_ranch
Is there more info on another thread someone could share about the 993 HE's? I had not heard of that mod before.
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Arrrrgh, thread hijack.....What do you need to know?
993 HEs are larger tubed than the SSIs HEs commonly used on back dating the 2.7, 3.0 and 3.2s so that they can use a dual in banana muffler. There is a HP gain for the 2.7 and 3.0....not much for the 3.2.
It's a bit hard to plumb in a cat but it CAN be done. I have posted pics of my custom set up a few times....
The 993 HEs need to have one side exhaust port/head flanges re-oriented so that they fit. Ingo has access to a jig to have them done. The prices on the 993 HEs have gone up of late.....so look around.