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What is your question?
I have been told that both my ctalytic converters, when hooked up to diagnostic machine have low pressure and need to be replaced. Why is there such a price difference and how do I know which ones I need. Anyone else had this problem.

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My husband's nissan sentra 2001 needs to cat converter replaced. the one i found made by easterns should work just fine, keep in mind though you need to replace your O2 sensor the same time you replace the cat converter. They do range greatly in price, mostly due to the manufacturer, the cheapest i've found was 89.17 however it did not include free shipping so the next best price was 98.69 from Autopartswarehouse.com with free shipping. If you order the part through a shop it will cost you $400-$600.
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