02 defoulers (N55) which brand do I buy?

[NORAGRETS]

anyone run defoulers or spacers on their N55 catless down pipe? I need them for inspection in MA.

I have an AR Catless DP, not sure if just any brand of spacer or defouler will work

any help apprecaited

thx

[NORAGRETS]

nothing? no one? really...?

[e36addict]

http://www.e90post.com/forums/showthread.php?t=986016

I followed that for a while and no one seemed to have any luck.. Seems that the N55 is very sensitive. I'd still like to try it one of these days..

[3002 tii]

No fix. Only way to pass is running a tune that auto clears like jb4

[A_Squared]

If it's an actual inspection where they will look underneath, then it probably won't work for you. Like mentioned you will need a DP fix. If it's just a plug and scan looking for OBD readiness, then it will work. I used 42 draft design bc they are angled and allowed for enough clearance on my n54. Got em from Leo off etektuning.com. I passed without any problems, never had a CEL and I'm running a dinan tune

[Nugget]

Originally Posted by Twhill19

nothing? no one? really...?

If you find some that work, let everyone know because no one else has.

[NORAGRETS]

Originally Posted by A_Squared

If it's an actual inspection where they will look underneath, then it probably won't work for you. Like mentioned you will need a DP fix. If it's just a plug and scan looking for OBD readiness, then it will work. I used 42 draft design bc they are angled and allowed for enough clearance on my n54. Got em from Leo off etektuning.com. I passed without any problems, never had a CEL and I'm running a dinan tune

It's obd inspection

[NORAGRETS]

Originally Posted by Nugget

If you find some that work, let everyone know because no one else has.

Will do

[A_Squared]

If it's just OBD inspection I'm telling you the 42 draft spacers worked for me. Not sure how much it differs for the N55 but I passed smog 2 months ago with no problems at all.

[NORAGRETS]

Originally Posted by A_Squared

If it's just OBD inspection I'm telling you the 42 draft spacers worked for me. Not sure how much it differs for the N55 but I passed smog 2 months ago with no problems at all.

It's not
Even smog it just has to read O2 monitor ready and catalyst monitor ready. Have catalyst ok. Just need 02

[Dackelone]

When your state inspection place reads the OBDII memory... they will be looking for those six "ready codes". I think your car needs to be in three out of the "ready state". I don't think that o2 spacers would help in that case. ?


http://www.obdautodoctor.com/scantoo...ors-explained/

http://www.autotap.com/techlibrary/o...ns_testing.asp

[NORAGRETS]

Originally Posted by Dackelone

When your state inspection place reads the OBDII memory... they will be looking for those six "ready codes". I think your car needs to be in three out of the "ready state". I don't think that o2 spacers would help in that case. ?


http://www.obdautodoctor.com/scantoo...ors-explained/

http://www.autotap.com/techlibrary/o...ns_testing.asp

In Massachusetts its 2 not 3

[NORAGRETS]

Originally Posted by A_Squared

If it's an actual inspection where they will look underneath, then it probably won't work for you. Like mentioned you will need a DP fix. If it's just a plug and scan looking for OBD readiness, then it will work. I used 42 draft design bc they are angled and allowed for enough clearance on my n54. Got em from Leo off etektuning.com. I passed without any problems, never had a CEL and I'm running a dinan tune

Interesting w the Dinan tune but I guess n55 cars are super sensitive w O2 monitors we shall see

[darkrom]

Ok so I know ALL about MASS inspections since I have been sent to the MAC (mass auto compliance) center for my evo x before.

Those saying JB4 autoclear, will not work in this state. That won't throw the code on the dash, but it will never reach a ready state.

Your only hope of passing in MA with catless on an N55 is to use a spacer. This allows you to keep the o2 monitoring on and ready. There is no way to know which will or won't work on your car. The only thing you can do is make sure you have code clearing on JB4 or cobb 100% off, install your spacers. Drive for 100 miles or so, and see if the codes pop. If they do you need different spacers. Vibrant makes an adjustable spacer with 3 different sized inserts. I'd suggest that since if one throws a code you can install the more or less restrictive spacer and allow more or less gasses to hit the o2 sensor as needed.

For N54 cars just turn of all code suppression (JB4 or Cobb) and install the DPFIX which is just great.

[NORAGRETS]

I'm having this done this weekend fyi I'll post if it works

[A_Squared]

Originally Posted by Twhill19

I'm having this done this weekend fyi I'll post if it works

Which spacer did you get?

[NORAGRETS]

Originally Posted by A_Squared

Which spacer did you get?

The tech at pro spec here in boston ordered a bunch of different ones, gonna play around w a few fitment stop see if we can get a working match or combo

[A_Squared]

Originally Posted by Twhill19

The tech at pro spec here in boston ordered a bunch of different ones, gonna play around w a few fitment stop see if we can get a working match or combo

Cool man. Another heads up. I have one of those wifi OBD connectors from Amazon. I use it with dash command on iPhone and it allows me to see the readiness status of the ECU. Pretty easy way to check before you go to smog the car

[NORAGRETS]

Originally Posted by A_Squared

Cool man. Another heads up. I have one of those wifi OBD connectors from Amazon. I use it with dash command on iPhone and it allows me to see the readiness status of the ECU. Pretty easy way to check before you go to smog the car

Interested for sure but I run something on my obd now to get rid of the SES light (bms can tool) but it would be handy to keep around. Who makes it?

[A_Squared]

This is the one I bought. Looks like the price went up though. Paid under $20 few months ago.

https://www.amazon.com/dp/B00AOIM2CC..._tODLub0SRJ53W

[dcaron9999]

Originally Posted by Twhill19

The tech at pro spec here in boston ordered a bunch of different ones, gonna play around w a few fitment stop see if we can get a working match or combo

Did you end up getting this done? How long have you been running the spacer, and what O2 spacer did your mechanic use?

[NORAGRETS]

Originally Posted by dcaron9999

Did you end up getting this done? How long have you been running the spacer, and what O2 spacer did your mechanic use?

yeah last week. i had him put a straight spacer (idk brand or difference between others) on the 1st 02 sensor which apparently can be done in japanese cars but not german. it didnt work at all, it threw off the air fuel ratios and stalled out 4-5 times while idling in traffic. i was later informed by ppl on this forum not to space the 1st sensor.

i then had him take that off and space the 2nd 02 sensor, which required the DP to be dropped from the car (not completely, just enough to squeeze it in). the spacer on the 2nd o2 sensor was slightly bent like a C shape. this also threw codes (listed above a few posts) that would not pass emissions.

all in all, spacers dont work for the N55 in my thorough opinion and experience. stock DP is on the car now until i get my sticker