Which cat for an SC400 with custom exhaust being built
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Which cat do you guys recommend for me? I'm having my SC400 exhaust system built, all 2.25" mandrel bent piping with a Magnaflow x-pipe and Magnaflow 14829 mufflers that a lot of guys are using. I figure with 206k my stock ones aren't flowing like they used to, and that the car would benefit greatly from new, higher flowing, larger i.d. cats anyway.
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Which cat do you guys recommend for me? I'm having my SC400 exhaust system built, all 2.25" mandrel bent piping with a Magnaflow x-pipe and Magnaflow 14829 mufflers that a lot of guys are using. I figure with 206k my stock ones aren't flowing like they used to, and that the car would benefit greatly from new, higher flowing, larger i.d. cats anyway.
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Do what? I coulda swore I read where people that used IMFs had to do something with the cats or whatever, they weren't a real direct bolt up. Either way, if I'm going to have an exhaust built for free flow, might as well not restrict them with old cats with loads of miles.
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Do what? I coulda swore I read where people that used IMFs had to do something with the cats or whatever, they weren't a real direct bolt up. Either way, if I'm going to have an exhaust built for free flow, might as well not restrict them with old cats with loads of miles.
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Hello!
i will install in the next days a redback 200cpsi stainless converter for up to 4L engines. Part Number CAT300M. Is the converter installed ( he comes on the place from the 3rd converter with a 3" pipe") i go to measure the exhaust values, after this, i install the IMF Headers and remove the main converters and do the test again and hope, the values ok.
don´t forget to install O2-simulator for the control o2-Sensors after the main converters.
more in my SC400 thread![Smilie](https://www.clublexus.com/forums/images/smilies/smile.gif)
greets
Tom
i will install in the next days a redback 200cpsi stainless converter for up to 4L engines. Part Number CAT300M. Is the converter installed ( he comes on the place from the 3rd converter with a 3" pipe") i go to measure the exhaust values, after this, i install the IMF Headers and remove the main converters and do the test again and hope, the values ok.
don´t forget to install O2-simulator for the control o2-Sensors after the main converters.
more in my SC400 thread
![Smilie](https://www.clublexus.com/forums/images/smilies/smile.gif)
greets
Tom
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I would use a high flow cat from Random Technology. They offer cats in all odd and common sizes, and even have as big as a 4-inch converter for those who have emissions but need lots of flow.
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