M Performance Exhaust + Challenge STREET
Has anyone tried this combination?
Do you think it will be too raspy as with the M Performance and Challenge Sport or other xpipe setup?
EAS or IND, your thoughts?
'11 E90 M3 | Space Gray, Black Novillo - Extended Leather, DCT, ZPP, ZTP | BMW M Performance Exhaust /EU Front Bumper /Black Grilles & Gills /EU Visor /EU Rear Fog Switch /OEM Interior & Exterior CF /Aluminum Pedals /M Floor & Trunk Mats | DINAN Underdrive Pulley /Front Sway | MS Test Pipes | ESS Tune | StopTech | Motul 600 | Huper Optik | Bridgestone Potenza RE-11 | LUX H8 v3