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I know for my car atleast, in the .92 of your high octane table, reduce that whole thing from 4200 to 6400 by 1 degree.

That helped for me anyway get rid of a little bit of KR in the higher rpms.

Looks better but I see few issue are still there.

You seem to have a vacuum leak somewhere as your LTFT hit 16.4 many times and when WOT they lock in around 9.4 for so. I'd try and figure that...

The part throttle kr I'm not too sure about.

At wot its starting to look better but I still thing maybe adding a plog would help alot.

And also its running very rich, your command AFR reaches...

Anything after the downpipe makes zero difference untill maybe 350WHP + on these cars.

The major problem spots are the front manifold and stock downpipe which you said you replaced. The factory...

Running 91+ pump gas right?


I would first start off by upping the pulley size to a 3.8. I kinda think there might be an issue with exhaust flow. Lower the boost and see if some of the KR goes...