Does catalytic converter size matter?
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Does catalytic converter size matter?
OEM vs. Aftermarket: Does a significantly smaller cat make a difference in performance? Can it reduce flow and cause engine issues down the line? Wouldn't it cause some sort of carbon issues, or compression issues?
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Last edited by Cleft_Asunder; Aug 7, 2017 at 12:58 AM.
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Yes there are potential problems with aftermarket cats. The problems you listed are possible depending on how mis-sized the cat is. Also there is a good potential for check engine lights with p0420/430 cat performance codes which will cause an instant fail in any area that requires smog testing.
I would expect cat performance codes more than I expect to actually see carbon issues.
I would expect cat performance codes more than I expect to actually see carbon issues.
Thread Starter
Registered!!
iTrader: (1)
Joined: Jul 2005
Posts: 1,255
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From: Reno, NV
Rep Power: 267 Re: Does catalytic converter size matter?
Yes there are potential problems with aftermarket cats. The problems you listed are possible depending on how mis-sized the cat is. Also there is a good potential for check engine lights with p0420/430 cat performance codes which will cause an instant fail in any area that requires smog testing.
I would expect cat performance codes more than I expect to actually see carbon issues.
I would expect cat performance codes more than I expect to actually see carbon issues.
