02 Impreza cold start 8 degrees F

Sorry the vid isn't longer, my phone ran out of memory while recording. Just a quick example of the classic Subaru piston slap on cold starts.

[@bangerzbang]

Did that code ever effect performance or give you a rough idle?

[@Ledface117]

Nope

[@bangerzbang]

@Ledface117 nice thanks for the reply. I know the videos some years back. Just installed the full set. Drove a couple hundred miles and eventually got the same bullshit p0420 code I figured cause of the high flow cat. I never install the elbow but I heard 90 percent of the time you'll still get a code

[@Ledface117]

@@bangerzbang yea I had the elbow in and I had the code almost all the time. Wasn’t a huge deal just kind of annoying. You might just have to check your codes every now and then to make sure you don’t have other codes as well.

[@bangerzbang]

@Ledface117 awesome. Once again really appreciate you answering. I saw the engine light even though I saw it coming because of the cat and was like dam I hope I don't go ruin my daily because of this set up. I just started getting a little piston slap myself and it's not even that cold I was like fuck my life lol life of a subaru owner😂