Catalytic Converter Brand - Lexus IS Forum
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post #1 of 5 (permalink) Old 01-26-2017, 06:59 PM Thread Starter
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Catalytic Converter Brand

So there's a few option on Rock auto. You guys know if one brand is any better than the other, or is it a coin toss? Dorman, Walker, Eastern, Davico, etc?
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post #2 of 5 (permalink) Old 01-29-2017, 09:12 PM
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I'm running Pacesetter Cats.. about $300 .. my oem Cats were shot
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post #3 of 5 (permalink) Old 02-27-2017, 12:31 AM
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MagnaFlow

Which cat are you referring to specifically? front or rear? Either way MagnaFlow has great cats. I got a PO430 cel, (basically the rear cat wasn't doing it's job, bank 2 to be specific), swapped it with a CARB compliant MagnaFlow 441006 cat. This was back in July of 2016, but I haven't had any problems since.

アルテッツァ
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post #4 of 5 (permalink) Old 03-19-2017, 07:16 AM
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The cats in my header went bad around 110K. Before i ever found out about Figs headers, the shop told me they would only install headers with Cats in them. (Needless to say this was the last time i went to that shop)

I went with the walker header as it pulled the collector / collection location further from the exhaust manifold. (Some would consider this a slight/ minimal upgrade - as the exhaust cannot easily re-enter back into the head)

Performance wise, great stock replacement header - my only issue with them is they rust as they are not stainless.

If this concerns you i would recommend having the shop or you purchasing an exhaust wrap so its not incredibly noticeable under the hood.
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post #5 of 5 (permalink) Old 03-19-2017, 07:26 AM
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  Lexus IS Forum > 1st-Gen IS300 > General Discussion

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