Back box delete advice M850i

Stavnshell · 12-20-2023, 04:36 PM

Looking to get quad tips installed on my M850i and also want a little aggression from my exhaust. I’ve been recommended to get a back box delete done. This will allow me to keep the original back box / muffler in case I want to refit it again at a later date. It will also allow the exhaust shop to easily manufacture the pipes and 4” tips whilst giving me more exhaust notes. Has anyone had this done? If so, how does it sound and any advice good or bad on getting this done. Thanks

Tenac · 12-20-2023, 04:45 PM

These post might help a bit.

https://f92.bimmerpost.com/forums/sh....php?t=1896755

https://f92.bimmerpost.com/forums/sh....php?t=2061171

12-20-2023, 04:36 PM	#1
Stavnshell Registered 0 Rep 2 Posts Drives: BMW M850ix Join Date: Jun 2018 Location: North Lincs iTrader: (0)	Back box delete advice M850i Looking to get quad tips installed on my M850i and also want a little aggression from my exhaust. I’ve been recommended to get a back box delete done. This will allow me to keep the original back box / muffler in case I want to refit it again at a later date. It will also allow the exhaust shop to easily manufacture the pipes and 4” tips whilst giving me more exhaust notes. Has anyone had this done? If so, how does it sound and any advice good or bad on getting this done. Thanks
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12-20-2023, 04:45 PM	#2
Tenac Brigadier General 4555 Rep 3,517 Posts Drives: All Join Date: Mar 2019 Location: AZ iTrader: (0)	These post might help a bit. https://f92.bimmerpost.com/forums/sh....php?t=1896755 https://f92.bimmerpost.com/forums/sh....php?t=2061171 __________________ 2022 M8 Comp Convertible 2023 718 Cayman GTS 4.0 2019 718 Cayman Base 2015 M235 Manual On the list for the M2 CS
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