JB4 + Catless Downpipes?

ghostB48 · 01-22-2021, 02:08 PM

Hello all!

I have one of the newer 2021 330i's and I am looking to tune my car. I am aware of the locked DME's that require a bench unlock and am leaning towards an alternate path. All that I genuinely want are some burbles and the only way to get this is with a ECU tune that seems to be impossible to get at the moment in my area.

As another route, I was wondering if I were to get catless downpipes and a JB4 would I be able to get the pops and crackles that I want?

Thanks

mike@x-ph.com · 01-23-2021, 12:42 PM

you will hear more pops due to the higher flow downpipe but the Jb4 cannot change the settings of the burble like a flash tune does.

01-22-2021, 02:08 PM	#1
ghostB48 New Member 2 Rep 12 Posts Drives: 2021 BMW 330i Join Date: Nov 2020 Location: Los Angeles, CA iTrader: (0)	JB4 + Catless Downpipes? Hello all! I have one of the newer 2021 330i's and I am looking to tune my car. I am aware of the locked DME's that require a bench unlock and am leaning towards an alternate path. All that I genuinely want are some burbles and the only way to get this is with a ECU tune that seems to be impossible to get at the moment in my area. As another route, I was wondering if I were to get catless downpipes and a JB4 would I be able to get the pops and crackles that I want? Thanks
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01-23-2021, 12:42 PM	#2
mike@x-ph.com Joint Chiefs of Staff 24183 Rep 190,777 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	you will hear more pops due to the higher flow downpipe but the Jb4 cannot change the settings of the burble like a flash tune does. __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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