Emissions Inspection w/ Catless DP

anthony412 · 05-17-2016, 08:00 AM

Hi all, I'm wanting to do a JB4/Catless DP combo but am required to pass annual emissions inspections (southwest PA). However, all that is required is an ODB scan and not a visual inspection.

Will the JB4 cover up the fact that I'm running Catless and fool the test or is there no way around it?

boostaddict305 · 05-17-2016, 07:24 PM

If I'm not mistaken if you leave the jb4 on it ll just show that the sensor is "not ready" and you won't pass that's why I went catted so I don't have to deal with that btw I'm in RI we do inspections every two years

zipphreak · 05-17-2016, 07:41 PM

Remove and put back the factory DP, and remove the JB4 power

Drive atleast 50 miles before sticker.

FSociety · 05-17-2016, 07:44 PM

Thats why a lot of people are getting ECU Flash by/from reputable tuner, their CEL delete from software will show readiness for inspections!

Milkee_0923 · 05-18-2016, 04:24 AM

I was in your same situation with jb4 and catless downpipe. I tried looking for a tune that would do a downpipe fix but it was only available on the n54. I eventually had to switch back to the stock downpipe and do the drive cycle to get the o2 sensors ready for smog. Passed with no problems. Make make sure you set the jb4 to map 0 so the obd port can read.

Info@EnzoPerformance · 05-18-2016, 02:18 PM

Quote:

Originally Posted by ROBNYC

Thats why a lot of people are getting ECU Flash by/from reputable tuner, their CEL delete from software will show readiness for inspections!

mike@x-ph.com · 05-18-2016, 07:00 PM

Quote:

Originally Posted by anthony412

Hi all, I'm wanting to do a JB4/Catless DP combo but am required to pass annual emissions inspections (southwest PA). However, all that is required is an ODB scan and not a visual inspection.

Will the JB4 cover up the fact that I'm running Catless and fool the test or is there no way around it?

Jb4 hides the code, it does not get the car to illegally pass emission.
Your best bet would be to remove the DP once a year

zipphreak · 05-19-2016, 12:58 PM

Just be careful when you swap out the DP, them Bi*ches be hot! That upper v-band clamp bolt can be real PIA at 700+ degrees

Mywifes335 · 05-19-2016, 01:09 PM

So are the DMV folks that dumb they can't smell a catless DP?

Jeff@TopGearSolutions · 05-19-2016, 01:32 PM

Quote:

Originally Posted by zipphreak

Just be careful when you swap out the DP, them Bi*ches be hot! That upper v-band clamp bolt can be real PIA at 700+ degrees

Yes, please wait at least a good hour before touching the exhaust!

05-17-2016, 08:00 AM	#1
anthony412 Private 156 Rep 85 Posts Drives: '24 IOMG M3CX Join Date: Sep 2015 Location: Pittsburgh iTrader: (0)	Emissions Inspection w/ Catless DP Hi all, I'm wanting to do a JB4/Catless DP combo but am required to pass annual emissions inspections (southwest PA). However, all that is required is an ODB scan and not a visual inspection. Will the JB4 cover up the fact that I'm running Catless and fool the test or is there no way around it?
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05-17-2016, 07:24 PM	#2
boostaddict305 First Lieutenant 58 Rep 358 Posts Drives: M2 Join Date: Apr 2013 Location: RI iTrader: (0)	If I'm not mistaken if you leave the jb4 on it ll just show that the sensor is "not ready" and you won't pass that's why I went catted so I don't have to deal with that btw I'm in RI we do inspections every two years
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05-17-2016, 07:41 PM	#3
zipphreak Captain 454 Rep 986 Posts Drives: m235xi Join Date: Sep 2014 Location: b00ty iTrader: (2)	Remove and put back the factory DP, and remove the JB4 power Drive atleast 50 miles before sticker.
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05-17-2016, 07:44 PM	#4
FSociety IG @bmwF9xG80 3813 Rep 7,593 Posts Drives: G80 M3, X4M, G07 X7m50 Join Date: Apr 2012 Location: NYC to NJ to Orlando FL iTrader: (3) Garage List 2023 BMW G80 M3 [0.00] 2020 BMW X4MC [0.00] 16' BMW X4 M40i [10.00] 06 Cadillac STS [0.00]	Thats why a lot of people are getting ECU Flash by/from reputable tuner, their CEL delete from software will show readiness for inspections! __________________ 60-130mph 6.5s X4M #HCP 60-130mph 5.0s G80 M3 #OrlandoAutowerks Sauce IG: @bmwF9XG80
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05-18-2016, 04:24 AM	#5
Milkee_0923 Private 30 Rep 92 Posts Drives: 2014 BMW M235i Join Date: Mar 2015 Location: Las Vegas, NV iTrader: (0)	I was in your same situation with jb4 and catless downpipe. I tried looking for a tune that would do a downpipe fix but it was only available on the n54. I eventually had to switch back to the stock downpipe and do the drive cycle to get the o2 sensors ready for smog. Passed with no problems. Make make sure you set the jb4 to map 0 so the obd port can read.
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05-19-2016, 12:58 PM	#8
zipphreak Captain 454 Rep 986 Posts Drives: m235xi Join Date: Sep 2014 Location: b00ty iTrader: (2)	Just be careful when you swap out the DP, them Bi*ches be hot! That upper v-band clamp bolt can be real PIA at 700+ degrees
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