Downpipe without JB4

oscie4me143 · 07-13-2014, 05:47 AM

Hi everyone,

I just brought my car in for service and im putting my downpipe back on. Is it okay to have your downpipe installed without the JB4? Would there be any other issue other than the CEL light? Thanks

slmdgee · 07-13-2014, 06:41 PM

only cel issue! Car should be fine.

munch520 · 07-14-2014, 05:39 AM

They make o2 spacers, has anyone tried one of those on the rear bank? I've used them on other cars and they took care of CELs.

mike@x-ph.com · 07-17-2014, 12:56 PM

Quote:

Originally Posted by oscie4me143

Hi everyone,

I just brought my car in for service and im putting my downpipe back on. Is it okay to have your downpipe installed without the JB4? Would there be any other issue other than the CEL light? Thanks

You will get a code but car will run fine.
You do need a tune take full advantage of the DP though.

K320 · 07-17-2014, 10:07 PM

Downpipe cel fix

07-13-2014, 05:47 AM	#1
oscie4me143 Private 12 Rep 59 Posts Drives: 22 M340i, 04 E46 M3 Join Date: Jul 2013 Location: Northern New Jersey iTrader: (0)	Downpipe without JB4 Hi everyone, I just brought my car in for service and im putting my downpipe back on. Is it okay to have your downpipe installed without the JB4? Would there be any other issue other than the CEL light? Thanks
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07-13-2014, 06:41 PM	#2
slmdgee Usofstance 78 Rep 671 Posts Drives: 328I 6SPD Join Date: Nov 2011 Location: Long Island iTrader: (0)	only cel issue! Car should be fine. __________________ 2013 328i 6MT Bagged IG Stu_UnitedStatesOfStance United States Of Stance
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07-14-2014, 05:39 AM	#3
munch520 First Lieutenant 16 Rep 337 Posts Drives: '14 328i M Sport Join Date: May 2014 Location: OHIO iTrader: (0)	They make o2 spacers, has anyone tried one of those on the rear bank? I've used them on other cars and they took care of CELs. __________________ 2014 M Sport //OEM+//
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07-17-2014, 10:07 PM	#5
K320 First Lieutenant 131 Rep 350 Posts Drives: G01-X3 30i MSport Join Date: Aug 2013 Location: Puerto Rico iTrader: (0)	Downpipe cel fix
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