uglybastard
Autocross Champion
Do you have an o2 spacer on the rear o2? You'll need that for it to show ready if you have a bigger downpipe.
yep got the 42DD one from when i bought the DP. passed inspection last year with that DP on the stock catback. this year i have a different catback on there but that was not an issue. just need 2-3 more drive cycles before i take it back to retest.