so deleting the cats would actually make a significant power gain?
and if I do decide to remove the cats...I should do that before tuning with AA. so they can tune the software precisely and properly towards having better exhaust flow?
Is that correct?
2010 Audi R8 V10 Coupe 6MT-White on Red
20" Modulare B31 | GMG Exhaust | H&R Springs | H&R Spacers | Carbonio Intake | UniTronic ECU Upgrade | 15% Tints/50% Windshield | Wrapped Gloss Black Roof
2013 Range Rover Sport-Black on Black
Stock with 15% Tint & 50% Windshield