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Generation III Internal Engine 1997-2006 LS1 | LS6
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Old 03-09-2007, 04:20 AM
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Hi, my friend has a 2000ss z a4. He was wondering, if he were to eliminate the cats off his car, would there be any side effects ? Check engine light, ect.? How much more power could be expected?
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Old 03-09-2007, 05:39 AM
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Yes he needs to delete the after cats O2s via tuning. Maybe 5rwhp
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Old 03-09-2007, 07:20 AM
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just gut them, u might get lucky with no light turning on, i bought some gutted ones, with slp they sound awesome.
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Old 03-09-2007, 09:05 AM
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They also sell O2 sims for the rear O2's. I had them on my car until I picked up HP Tuner and turned them off. The sim's work great. I never had the light come on with them on the car.
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