Quote:
Originally Posted by yelcab1
I am putting a 993 engine into a 74 body. There is not going to be any cats, but we want to preserve the heat exchanger function for the chassis. The muffler is whatever it needs to be including some customization. A 991 GT3 muffler was slated for this one.
What are my header choices?
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I've used oe 993 and custom 1/75" headers, on stock 3.6, moded 3.6 and moded 3.8, no difference on the dyno or seat of the pants
once a muffler is installed and especially w/ smog cams a well designed custom header makes little to no difference