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Correct...I have a tuner, I am going to just re-tune the car and hope that works. The WOT problem persists at about 4500 rpm to about 6000. It is not a misfire, it is not throwing codes..... It is more like an over-rev limiter. Anyone know a good tune shop in the Portland, OR area? I would...

Thats almost exactly what I am experiencing... at about 4500 RPM it is like the rev limiter is kickin in....

No, I was hoping that re-installing the original Brenspeed tune that was made for just the CAI (which is the Bullitt 85mm) would make the sensors recognize the increased airflow out the backend. I am not tech savy so don't fully understand all the cars computer related stuff.

Sorry, maybe I wasn't clear enough, I had originally put a FRPP CAI on, for that I needed a tune that I got from Brenspeed, so.... It is axle backs PLUS a CAI. After adding the axlebacks, at WOT, it acts like it is cutting out, especially from 2nd to 3rd at about 4,000-5,500 RPM. Sorta like the...

I just installed Flowmaster 40 series axleback mufflers, have a FRPP CAI and am running a Brenspeed tune and now my car is REALLY missing under WOT. Do I need another tune since I added the axlebacks???

Thanks ! ! Much appreciated