Quote:
Originally Posted by neilvosko
well, that helps. catless or catted doesnt matter?
, aftermarket systems are 2.5"+ inner diameter while OEM is 2.125" so i guess even catted headers is Stage 2 ?
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catless only. A bigger diameter catted header still has a huge clog in it. Stage 2 is for catless setups only. What will end up happening is that the exhaust gas temps will run too high and you'll melt the cat.