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05-15-2023, 08:56 AM
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#15 |
          
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 4,195
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It can probably be tuned to pass emissions test without cats, but the visual inspection will be tough if you don't have any. I scraped out the internals of my green cats after they were destroyed.
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2020 ZL1LE A10.
LME LT4 390 short block, LME CID Heads, Kong E2650, FBO. 15" conversion, MT ET Street R 325/15. 100 octane: 1045hp/1055tq. 100 octane + Meth (1x10+): 1117 hp/1067 tq Last edited by JSH; 05-15-2023 at 11:54 AM. |
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05-18-2023, 03:50 AM
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#16 |
 
Drives: 2022 ZL1 M6 Join Date: Mar 2022
Location: Long Beach, CA
Posts: 187
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This doesn't work anymore, at least in CA. The smog techs now check to see if there is some alteration to the stock tune in order to pass the ready monitors.
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2022 Black ZL1 M6
RF intake, Soler TB & TC, ADM v2 reservoir, AWE Touring non-resonated catback exhaust. 535 whp, 537 tq. SAE Smoothing: 5. DynoJet. No tune. 91 octane. |
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