catalytic converter
#2
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Join Date: Dec 2003
Location: Minnesota
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Originally Posted by muddybamayota88
Will gutting the catalytic converter on my tacoma hurt the engine? Will it help any? I have a 3.4 v6 with the 5 speed also.
No
Leave the cat alone. Removing it will gain you NOTHING but a tinny sound. IT's the cheapest way to clean up the exhaust and help reduce pollution and likely outflows your muffler anyway.
#4
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Location: Plainfield, IL
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I gutted mine, it got louder and combined with the flowmaster one of the first things people compliment is the exhaust sound. I dont really care that much I was lookin to get down the highway smoother and w/ better milage, and I did I cruised better and downshifted less and got another 2-3mpg.
BTW, I passed my chicago emissions test 3 times below the limit, which is cleaner than many new suv's.
I dont regret it but I began by just drilling a hole through the center of the cat and cleaning that out and over the next year or so it kept breaking apart and cloging the exhaust, so if I noticed a massive loss in power a I opened the back of the cat and there were some golf balls and baseballs sitting in the back of the cat. I just cruched them with a srewdriver and dug them out.
So if you do do it hollow the whole thing out
I dont know about the sensors on the 3.4 though, if you have a sensor after the cat, which I think you do them dont do it.
BTW, I passed my chicago emissions test 3 times below the limit, which is cleaner than many new suv's.
I dont regret it but I began by just drilling a hole through the center of the cat and cleaning that out and over the next year or so it kept breaking apart and cloging the exhaust, so if I noticed a massive loss in power a I opened the back of the cat and there were some golf balls and baseballs sitting in the back of the cat. I just cruched them with a srewdriver and dug them out.
So if you do do it hollow the whole thing out
I dont know about the sensors on the 3.4 though, if you have a sensor after the cat, which I think you do them dont do it.
Last edited by 4rnr; 01-18-2006 at 11:59 AM.
#6
Contributing Member
Originally Posted by muddybamayota88
If the o2 sensor is after the cat am i good to go? I plan to hollow the whole thing out, no drilling holes.
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#9
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Originally Posted by 4x4Lamm
Spend $30-$50 and get a CatCo Cat. Increased LEGAL performance. You can see right through em, they are a "free flow" type.
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