BLACK'98DSM
5+ Year Contributor
- 4,450
- 1,889
- Feb 9, 2019
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Alabama
My cat is heavy and ugly, also very restricitve. Gonna delete or replace with a Magnaflow Performance one. How much hp can I expect to gain? Or any?
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Yes, it's the cat that came on the car 22 years ago. I'm thinking of cutting the cat off then welding a piece of straight pipe in it's place. This pipe will be the same size as the rest.Is it a stock cat? If it is, does that mean the downpipe and catback both reduce down to the size of the cat? If so, removing those transitions and making it one continuous size will also help.
Yeah, if the downpipe and catback have the smaller piping and flanges, you'll have to chop those off and replace the flanges and short runs of pipe to make it the same size as the rest of the exhaust. I had to do that as well.Yes, it's the cat that came on the car 22 years ago. I'm thinking of cutting the cat off then welding a piece of straight pipe in it's place. This pipe will be the same size as the rest.
Just bang out the core with a sturdy pipe, if you don't have emissions testing in your state. Not recommended though cause it's kind of a grey area.Yes, it's the cat that came on the car 22 years ago. I'm thinking of cutting the cat off then welding a piece of straight pipe in it's place. This pipe will be the same size as the rest.
It's the cheapest and best flowing option. Why is that so?On a non turbo car I would not remove the cat. You could use a high flow cat but I wouldn't remove it completely.
Oh hell, didn't even notice this is for a N/T car... Not sure you'll notice too much outside of better response, maybe a little more pep. If you dyno'd the car it might be a few HP.On a non turbo car I would not remove the cat. You could use a high flow cat but I wouldn't remove it completely.
It's the cheapest and best flowing option. Why is that so?