Quote:
Originally Posted by mike2100
That's a nice little tidbit of information.
I've been wondering the same thing. My gut instinct is that if you want just one cat then catless header + high flow catted downpipe will be the best combo.
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You would be able to have longer secondaries with the cat downstream. That would be ideal for performance. For emissions, it's better to have the cat further upstream to warm it up faster.