Quote:
Originally Posted by chrisko
JB4 autoclear removes the code completely, no SES; but, you won't know if there's a bigger issue looming in the shadows either.
I'm seriously about to just pull the trigger and get an expensive high-flow catted DP. I am not really having any idling issues but I'm not a fan of my JB4. I will probably switch to Cobb AP for tuning once I get that high flow cat.
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Actually real codes still show a light in dash. Only passive codes are hidden. Remember though catless downpipes are only for dedicated race cars!
On the E series N55 JB4 are you using the new N55 ISO firmware yet? I hear it's a pretty significant upgrade in terms of smoothness and power compared to the integrated firmware they ship with.
Mike