Catalytic converter question
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Elder User
Joined: Sep 2005
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From: Brumley, MO
Catalytic converter question
Are the cats on the Ford trucks of this era the most restrictive cats ever, or are they just a really quiet design? You can have a cat back straight pipe, and it still be very quiet. Is that restriction or just a quiet design? What kind of power is there to be had without them? Did Ford rate their engines power with the cat installed?
Lead Driver
Joined: Jul 2007
Posts: 7,868
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From: Rhode Island
All cats quiet exhaust down a lot. But keep in mind, a 300-6 isn't exactly a powerhouse, so it's not going to be THAT loud anyways.
Engine power is always rated with full accessories, intake, and exhaust.
Engine power is always rated with full accessories, intake, and exhaust.
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Elder User
Joined: Sep 2005
Posts: 647
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From: Brumley, MO
Thanks for the answer to the ratings question. I don't have a 300 anymore. I have a 460 now. I have never seen cats that were as quiet as the cats on these Fords which is why I ask are these more restrictive than most or just quieter than most?
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