MK 2 URD Y Pipe Emissions Question

Same here, good to know as I’m looking to run a similar set up.

Did you say earlier you were in VA? How close are you to Richmond Area?

 

About a 2 hour drive southeast! I'm in VBVA

 

Just installed the URD y Pipe. On my TRD exhaust and got check engine light after about 40 miles. Was wondering if anyone else has gotten this and fixed it.

 

Yes I did. Make sure all bolts and nuts are tight, clear codes and check again. If it doesn't go away, you can buy o2 sensor spacers and that will clear things up. For some reason the URD y pipe does that but not the spec-U one, as I have the spec u full exhaust now and never had a check engine light to begin with. Hope this helps man

 

Any o2 sensor's spacers u recommend. I checked all bolts and i did notice the 2 o2 sensors where loose enough that with my hand i was able to remove them. I tightened them back now i cant remove with my hand. Im going to have the code cleared and i hope this time it wont come back. I hope that was the issue.

 

I used this one: https://www.amazon.com/Vibrant-11619-J-Style-Restrictor-Adjustable/dp/B00AQ7972O it comes with three different 'jets' to adjust the amount of exhaust hitting the sensor too in case you mod down the road and it comes back, whatever. Yeah there's a good chance that was your problem though, having a leak right around the sensor could easily have done that

 

My excitement with the newly installed URD Mark 2 Y-Pipe was short lived after 350 miles in since the install, and nothing. Now the CEL came on.

Silimar set up as some of u guys. Borla Cat-back with 1.05 ovtune 91 perf. Stock Air Intake with TRD filter.

Gonna try to clear it and see where things might get loose. After that, I will get a spacer.

This will be extremely interesting on how my dealership will react. I have complimentary maintenance. Every time I take it in, they will do a full routine inspection for me. And this y-pipe will be extremely obvious. lol!

 

Full Skids to hide it. Idk lol

 

Lol! Ikr. Nah. I'm not too worry now. They're pretty mod friendly dealership. And where I'm at, there's no visual inspection or exhaust probing for smog check. As long as there's no CEL, we are set.

But right now, my CEL just lit. So no good. Gotta figure out what's going on.

 

I run the vibrant o2 defoulers as well, anytime you delete cats you need them to account for the extra flow. I used the middle sized ring since the install and point them upward so no condensation can pool on the sensor. No cel and ran for over 500 miles now. I bought better clamps too for mine, slip joint 2.25 for the fronts and 3 inch for the rear. I had a few tiny leaks with the clamps they supplied. Also used copper rtv on the joint area for extra seal, leak free now.

 

I used this on my two part Hooker Headers in my V8 Vega. Never leaked, no need for a clamp. Easy cleanup with steel wool after it cooks, or just some carb cleaner before it is heated. I use it on all exhaust joints. None of those tiny annoying leaks that drive you crazy.

Walker Exhaust 35959 Muffler/Exhaust Putty

https://www.amazon.com/Walker-35959-Hardware-Sealing-Compound/dp/B000CQDL94