Sound improvement from downpipes

Alan92 · 05-31-2020, 12:02 PM

Hey all,

I figured running a full downpipe would be the best improvement in sound, but is there a different if replacing just the primary or secondary downpipe for sound? Will one provide better sound over the other?

And if anyone has any clips that would be awesome, tried looking on youtube and they all either say full downpipes or dont specify.

Boostedphil698 · 06-25-2020, 05:41 PM

Quote:

Originally Posted by Alan92

Hey all,

I figured running a full downpipe would be the best improvement in sound, but is there a different if replacing just the primary or secondary downpipe for sound? Will one provide better sound over the other?

And if anyone has any clips that would be awesome, tried looking on youtube and they all either say full downpipes or dont specify.

Hey man, not an M5 owner but I figured I'd chime in since I do know these cars fairly well. I'd delete the secondary cats; most aftermarket performance exhaust systems delete them anyway. I'd say a valved exhaust would get you the most sound and performance. Check out AWE Switchpath exhaust for your car.

Alan92 · 06-25-2020, 08:23 PM

Quote:

Originally Posted by 435i_Phil

Hey man, not an M5 owner but I figured I'd chime in since I do know these cars fairly well. I'd delete the secondary cats; most aftermarket performance exhaust systems delete them anyway. I'd say a valved exhaust would get you thr most sound and performance. Check out AWE Switchpath exhaust for your car.

Cool thank you for the info, I probably will end up doing full cat deletes but ill look into AWE.

r33_RGSport · 06-25-2020, 08:48 PM

Quote:

Originally Posted by Alan92

Hey all,

I figured running a full downpipe would be the best improvement in sound, but is there a different if replacing just the primary or secondary downpipe for sound? Will one provide better sound over the other?

And if anyone has any clips that would be awesome, tried looking on youtube and they all either say full downpipes or dont specify.

Check out my IG.
I have some video. Recently is M8GC with secondary delete. Will sound the same.

FYI, full cat back will not delete the secondary cat.
Secondary cat on this car is not located on the mid-pipe.

Boostedphil698 · 06-26-2020, 10:22 AM

Quote:

Originally Posted by Alan92

Quote:

Originally Posted by 435i_Phil

Hey man, not an M5 owner but I figured I'd chime in since I do know these cars fairly well. I'd delete the secondary cats; most aftermarket performance exhaust systems delete them anyway. I'd say a valved exhaust would get you thr most sound and performance. Check out AWE Switchpath exhaust for your car.

Cool thank you for the info, I probably will end up doing full cat deletes but ill look into AWE.

All their systems are hand built!

BMWDriverX · 06-26-2020, 02:31 PM

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05-31-2020, 12:02 PM	#1
Alan92 Private 19 Rep 70 Posts Drives: M8C Comp Join Date: Apr 2009 Location: NYC iTrader: (0)	Sound improvement from downpipes Hey all, I figured running a full downpipe would be the best improvement in sound, but is there a different if replacing just the primary or secondary downpipe for sound? Will one provide better sound over the other? And if anyone has any clips that would be awesome, tried looking on youtube and they all either say full downpipes or dont specify.
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06-26-2020, 02:31 PM	#6
BMWDriverX Captain 366 Rep 804 Posts Drives: G12 750i X-Drive Join Date: Jul 2017 Location: CA iTrader: (1)	https://www.youtube.com/feed/my_videos
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