Hondata

If I am running AFM/MAF calibration and replace my cat Back exhaust, is retuning with flashpro going to net any noticiable gains? (Header/Cat is stock).

Looking through the calibrations that come with flashpro I do not see any for afermarket cat back exhaust systems.

The exhaust system on the SI is pretty good from the factory. There is not much to gain by changing the exhaust.