I was told catalytic converters were supposed to last the lifetime of a car (My car is 10 yrs old 110K miles, 99 Mazda Millenia). The dealer wants just over $1000 to replace. Are aftermarket cat converters equally efficient and can any reputable garage replace them? Is it the part that is expensive or the labor? I'm getting different prices by different garages.
After visiting another garage, I was told that there is indeed an oil leak somewhere in the engine which contaminated the cat converter. I went back to the dealer who was adamant that the oil leak did not cause the failure. Well, the car goes to the shop next week for a new cat. Lets see what the dealer finds when he opens my baby up (at more that $1000!!!!)
You need to find out if the converter bolts to the manifold or if it's "in-line" in the exhaust system. If it's in-line, you can get one welded in for way cheaper than a grand. If it bolts to the manifold, they can be expensive. Try pricing one online at Millercatalyzer.com. Converters should last the life of the car but since you lacked proper maintenance, it obviously failed.
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