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Hey All, I just bought a 2023 Chevy Silverado 1500 LT 3.0L LZ0 Duramax - Brand new from the dealership about a month ago. I have done quite a bit of exterior work but want to begin some performance modifications. My question is... Do the 2023 Chevy Silverado 1500 LT 3.0L LZ0 Duramax have an exaustt flapper valve? I was doing some research and was going to get under my truck to modify the flapper valve/muffler delete to stay open, but I couldn't see or find it. I also saw some people who got some muffler tape to tape over the 3 "mesh like screens"/resonator deletes but could not find those either. Any/All help would be greatly appreciated. Thanks in advance, Jason
Has anyone used this PSI Power Tuner or found where others have used this? I found the product on two different sites; the 2nd URL has better details on the product. I'm skeptical on this product, being that no other tuners have released products for the 3.0L Duramax (LM2). PSI Power 2020 3.0L Duramax Performance Module (Truck Edition) | Thoroughbred Diesel Agricultural Diesel PSI Power Module 2020 3.0L GM Duramax (parleysdieselperformance.com) Also, what about these two products? https://afepower.com/afe-power-50-70064t-momentum-hd-cold-air-intake-system-w-pro-10r-filter#overview https://afepower.com/afe-power-77-44014-scorcher-hd-module#overview And this? https://www.sbfilters.com/cold-air-intakes/silverado-sierra-1500-duramax-3-0-intake-75-5137?variant_id=712