Downpipe Question

Hi Everyone, I have a 2021 E53 Coupe, the already good standard pops and burbles in sport+ we're great but I wanted more. I just installed a project gamma downpipe (great quality downpipe). The moment I took the car off the lift it sounded awesome! Pops and burbles were working and sounding stronger and deep BUT NEXT DAY, POPS AND BURBLES COMPLETELY STOPPED HAPPENING!!!! Can anyone offer help or suggestion why and what I can do to get my pops and burbles back like I had literally yesterday... Downpipe Question

Hi Everyone,
I have a 2021 E53 Coupe, the already good standard pops and burbles in sport+ we're great but I wanted more. I just installed a project gamma downpipe (great quality downpipe). The moment I took the car off the lift it sounded awesome! Pops and burbles were working and sounding stronger and deep BUT NEXT DAY, POPS AND BURBLES COMPLETELY STOPPED HAPPENING!!!!
Can anyone offer help or suggestion why and what I can do to get my pops and burbles back like I had literally yesterday...

Downpipe Question

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