Just installed new G42-specific B58 decat downpipe. Super easy install with great results. Definite power increase using the bum-dyno. Will get some proper numbers soon.
CEL light come up after around 100 miles. Going to try an O2 spacer to see if this helps. Can remove the light in the meantime clearing it via JB4.
Downpipe on the AUTOID store here:
https://autoid.co/products/bm-2-seri...em-by-psr-2021
Made a video: