I have been planning on getting either the single or dual muffler borla exhaust for awhile now, but it appears I may need to reconsider.
Is everyone that has the borla exhaust on an AT experiencing bad drone?
2008 Montego Blue E90 ll Custom K&N Dual Cone Intake ll Aluminum OEM Pedals ll 25% Tint ll M3 Spoiler
To Do (Cosmetic): Black Line lights, Lux 4.0 Angel Eyes, 19" CSL HyperBlack
To Do (Performance): Exhaust (still undecided which brand), SSTT, FMIC (unsure what type)