I bought a sled with twin pipes installed by the PO. It’s way too loud for me and I want to reinstall the stock exhaust or at least the stock pipe with a Ti can. Unfortunately, I have no idea if the PO flashed the ECU with the SLP tune or not and after contacting SLP, they told me that there is no way to pull the calibrations and check (is this true?). Do I need to flash the stock tune if I reinstall the OEM exhaust? I have an EzLynk. Can this be used to load the OEM cals?
