Originally Posted by enash99

That blue is tough to read... Is that APS exhaust a full TBE? catless or catted? Also you might want to "test" with the stock air box and a K&N drop in filter. You might get a tad bit MORE performance with the stocker in and the sliencer removed. SS explained to me how the APS intake causes a wave in the A/F table. Has something to do with how high the filer sits in the fender well. You might only be able to use that intake correctly with a pro-tune from SS.