That's my point similar mods but different components= different ecu self learn between the two cars.

Different exhausts will show different torque peaks and flow induced boost spikes.

The only way to compare would be dyno 2 x totally stock cars, on the same fuel, after doing an ecu reset.

__________________
[CENTER][SIGPIC][/SIGPIC][/CENTER]
[CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER]