BMW 3-Series (E90 E92) Forum - View Single Post - JB4 Stage 2 map 2 and map 5 on stock downpipe

xnfsx · 02-01-2013, 05:53 PM

Is there any issues with this set up?

I recently took off my ar design catless downpipe. I am just wondering if I can run the jb4 stage 2 on map 2 or map 5 without the catless downpipe. I fill 93 octane only. Long term effects/issues?

Thanks in advance.

02-01-2013, 05:53 PM	#1
xnfsx Captain 64 Rep 924 Posts Drives: E90 M3 2011.75 Join Date: Jan 2012 Location: NY iTrader: (4)	JB4 Stage 2 map 2 and map 5 on stock downpipe Is there any issues with this set up? I recently took off my ar design catless downpipe. I am just wondering if I can run the jb4 stage 2 on map 2 or map 5 without the catless downpipe. I fill 93 octane only. Long term effects/issues? Thanks in advance.
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