Ken
Let Me know what You find out in Your research. My exhaust shop also told me that the new stock ones would be all right. To get the performance work done I went to people the exhaust shop recommended and the performance shop are the ones who told me about converter problems. Keep in mind they are looking at it from a performance angle and the complete flow of intake air and exhaust air all in one big picture. The perofrmance guys are the ones who had the idea of checking out stock versus perf. cats. They decided to research and cut open used stock cat with just 8,000 miles on it versus the high flow cat.
I know You will dig it so let Me know what You find out. I just think of how much flow into engine and out exhaust you have and that got Me to wondering about Your situation and what mine would be once SC is on My H2.
Rick
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05 H2 SUV cus. paint, Magnuson SC 6/12lb boost, cowl hood scoop, 12" dash touchscreen, GM elec. fans, HPTuners.com tuning soft., Dynatech headers dual catback exhaust Jet Hot chrome front to back Flowmaster Super 40's, Diamo 8 Karat rims & 325X60-20" Toyo, 4 OEM Captain seats Katzkins leather, rear console computer inside running all AV/NAV etc., Infinity component system 3 amps Tsunami Caps, rear flip down 12" monitor, headrest monitors, overhead console boost, fuel pressure, & A/F ratio gauges
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