i have no idea what you are talking about because my performance exhaust is way more quiet than I thought it would be. IMO its not deafening in the slightest. Sorry I can't really help you out though. Hopefully it mellows out even more as you break it in.
__________________
|Shadowline Grills|Hotchkis Front Sway Bar|DIY CF Black Fabric Trim|Carbon Fiber Trunk Spoiler|Black O.Z Ultraleggeras|BMW Performance Exhaust|M-Sport Bumpers w/ Fogs|Shadowline Diffuser|CSR Eyelids|BMW Performance Shifter/Boot and Handbrake|AFE stage 2 intake|Koni FSD + Eibach Pro-kit|///M mirrors|Blackline LCI|
|