Quote:
Originally Posted by Chris_Rav
Hey guys, so I just got in a BMS downpipe and Vishnu charge pipe which I am eager to install. The thing is I have heard of people having some rough idling issues with the N55 with JB4 + Downpipe. As of now the car runs great with the JB4 as is but I'm wondering if anyone has had any success with eliminating the rough idle with the ISO upgrade? Or should I just leave it as is until after install of the dp and see how it is and go from there? I have the JB4 out now so it would be easier to cut the diode now prior to install of the dp but I'm afraid to create new problems that I might not have had before because of the ISO upgrade. Can anyone provide some insight ? I'm apprehensive to create new problems for something that is working pretty well as of now lol. Thanks guys.
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I only get a rough idle on a fresh start maybe once every 100 starts, and it only lasts for about 15 seconds while the O2 sensors heat up afaik.
Do the downpipe now, you will not regret it one bit.