Cat and muffler questions
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Cat and muffler questions
I've got a 2000 half ton with the 5.9L magnum. I'm planning to cut the cat as it's old and in poor shape, and the muffler as well. However I can't have the low end torque loss from straight piping. I've heard that a good muffler without a cat will solve the issue. It isn't required where I live to have the cat, so that's no concern.
What is the best option, price wise, for keeping the back pressure and low end torque? Buying another cat, gutting it, getting a certain muffler, etc
What is the best option, price wise, for keeping the back pressure and low end torque? Buying another cat, gutting it, getting a certain muffler, etc
I've got a 2000 half ton with the 5.9L magnum. I'm planning to cut the cat as it's old and in poor shape, and the muffler as well. However I can't have the low end torque loss from straight piping. I've heard that a good muffler without a cat will solve the issue. It isn't required where I live to have the cat, so that's no concern.
What is the best option, price wise, for keeping the back pressure and low end torque? Buying another cat, gutting it, getting a certain muffler, etc
What is the best option, price wise, for keeping the back pressure and low end torque? Buying another cat, gutting it, getting a certain muffler, etc
I'm a big fan of Gibson Performance truck exhaust systems......SS systems are a couple hundred bucks....
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How do you know you'll have "torque loss"? Each time I modified my exhaust it has increased feel of power/torque. Just had to gut the cat this summer on a road trip and all I noticed was more power. It's a straight pipe after that with a glass pack. I've "heard" that using 2.5" pipe is better than 3" so maybe go with that and throw your favorite muffler on and be done. There isn't much you can do to help these trucks anyway.
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How do you know you'll have "torque loss"? Each time I modified my exhaust it has increased feel of power/torque. Just had to gut the cat this summer on a road trip and all I noticed was more power. It's a straight pipe after that with a glass pack. I've "heard" that using 2.5" pipe is better than 3" so maybe go with that and throw your favorite muffler on and be done. There isn't much you can do to help these trucks anyway.
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The cat needs removing, or replacing. The question here is what my best course of action is, price wise, for keeping the low end torque, that is lost by straight piping. Don't reply anymore if this prospect confuses you, I'm just wondering about muffler options or other alternatives as I'd heard that you can create the necessary back pressure with a good muffler
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From: Clayton MI
There is no such thing as 'necessary backpressure'....... Removing the cat, especially if it is plugging up, will IMPROVE power. Gut it, straight-pipe it, whatever ya wanna do. The folks preaching gloom and doom if you do it, are simply wrong.
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Many thanks all except Ramman18
I'll just go ahead and cut them both and see what happens. Best case I pay for the pipe, worst case I have to buy a new cat or muffler anyways. Makes no difference I suppose.
I'll just go ahead and cut them both and see what happens. Best case I pay for the pipe, worst case I have to buy a new cat or muffler anyways. Makes no difference I suppose.
