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1.2gees 1.2gees is offline
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Join Date: Mar 2000
Location: Cary NC United States
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In short no.

The exhaust systems used on 944 series cars are really not restrictive at all. An example of this is 951s on stock headers/cross over pipes making over twice the stock levels of power.

Your NA has the same headers as the european cars that not only didn't have a cat, but had higher compression, and made more power. The late model headers should flow marginally better if any, but it wouldn't make a difference on your car. The changeover happened for durability reasons. The 2 into 1 section of the iron headers is a common spot of failure. If this happens however, the solution is neither complicated, nor expensive (fixed by welding, and since it's not stainless, most places can do this without a problem).
Old 05-07-2003, 01:25 PM
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