| I know that my MBRP turbo back exhaust has a noticeable drone at highway speeds. I know that MBRP has a resonator that goes on the front pipe that is supposed to eliminate the drone. I feel that mine was quieter with straight pipe at highway speeds (under 2200 rpms). I know that a buddy that has a silverline and his is louder than mine outside the cab, but I haven't talked to him about the drone in the cab.
__________________ 2004 GMC 2500HD D/A CC Carbon Metallic w/ LB7
4" turbo back MBRP exhaust
TST Powermax Programmer, Diablosport Predator
285/75-16 BFG T/A KOs, Eagle Alloys Series 187
Clifford 2 way remote start, High Idle, Bilsteins
Extang Classic Platinum Tonneau Cover
AFE Magnum Force Stage 2 Proguard 7 intake Kennedy Diesel Merchant Automotive My Photos |