# 04 GTP Rear 02 delete **URL:** \ **Category:** PittSpeed Automotive\ **Created:** [December 8, 2008, 8:46pm UTC](https://forums.speedlife.net/t/04-gtp-rear-02-delete/201013 "2008-12-08T20:46:33Z")\ **Posts on this page:** 9\ **Page:** 2
**Author:** ![VictorSmalls](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/victorsmalls/32/5944_2.png) [@VictorSmalls](https://forums.speedlife.net/u/VictorSmalls)\ **Post date:** [December 13, 2008, 10:43am UTC](https://forums.speedlife.net/t/04-gtp-rear-02-delete/201013/21 "2008-12-13T10:43:41Z")
> [@COD 4](https://forums.speedlife.net/t/cod-4/38120/197): > > but if they remove the test, it wont pass emissions. it may not throw the check engine light, but when the plug into your car for emissions, the emissions machine runs the test to make sure the o2 is working properly. if you have the test removed, it wont run and you fail > > you dont have emissions dave. right? That is correct, it will not pass a test. No emissions for me but I have gone to a catted ZZP DP so I could get it past the visual this year. I will most likely be switching back to the 3" catless in the spring. ---
**Author:** ![BlkP42E](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/blkp42e/32/5938_2.png) [@BlkP42E](https://forums.speedlife.net/u/BlkP42E)\ **Post date:** [December 13, 2008, 10:46am UTC](https://forums.speedlife.net/t/04-gtp-rear-02-delete/201013/22 "2008-12-13T10:46:51Z")
yeah. thats what i ran into when i tried with my GTP. the carred zzp DP flows pretty well… i doubt you’ll see much from going back to the non-catted pipe. ---
**Author:** ![Sinner6.0L](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sinner6.0l/32/6016_2.png) [@Sinner6.0L](https://forums.speedlife.net/u/Sinner6.0L)\ **Post date:** [December 13, 2008, 12:10pm UTC](https://forums.speedlife.net/t/04-gtp-rear-02-delete/201013/23 "2008-12-13T12:10:45Z")
you don’t remove the code, its still there but its switched to a no report status \<-- has a tuner, has a grand prix, has passed emissions ---
**Author:** ![VictorSmalls](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/victorsmalls/32/5944_2.png) [@VictorSmalls](https://forums.speedlife.net/u/VictorSmalls)\ **Post date:** [December 13, 2008, 1:35pm UTC](https://forums.speedlife.net/t/04-gtp-rear-02-delete/201013/24 "2008-12-13T13:35:41Z")
I might just end up going with the ZZP headers and do some more moding if I keep it much longer. 2008 G8 pricing is getting pretty tempting. ---
**Author:** ![BlkP42E](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/blkp42e/32/5938_2.png) [@BlkP42E](https://forums.speedlife.net/u/BlkP42E)\ **Post date:** [December 13, 2008, 2:32pm UTC](https://forums.speedlife.net/t/04-gtp-rear-02-delete/201013/25 "2008-12-13T14:32:22Z")
yeah they are. we got a few at work. the blue color is badass. ---
**Author:** ![VictorSmalls](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/victorsmalls/32/5944_2.png) [@VictorSmalls](https://forums.speedlife.net/u/VictorSmalls)\ **Post date:** [December 13, 2008, 2:36pm UTC](https://forums.speedlife.net/t/04-gtp-rear-02-delete/201013/26 "2008-12-13T14:36:01Z")
Stryker blue… drool. I think its an 09 only color though :dunno: I am tempted to hold out a year or so until the 09’s drop. ---
**Author:** ![BlkP42E](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/blkp42e/32/5938_2.png) [@BlkP42E](https://forums.speedlife.net/u/BlkP42E)\ **Post date:** [December 13, 2008, 7:09pm UTC](https://forums.speedlife.net/t/04-gtp-rear-02-delete/201013/27 "2008-12-13T19:09:54Z")
its all red tag/employee pricing. its not gonna drop. only leeway you really have is incentives. and i bet they are still decent right now ---
**Author:** ![SK360](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sk360/32/5933_2.png) [@SK360](https://forums.speedlife.net/u/SK360)\ **Post date:** [December 16, 2008, 7:32am UTC](https://forums.speedlife.net/t/04-gtp-rear-02-delete/201013/28 "2008-12-16T07:32:49Z")
> [@Buffalo Bills 2007 Season Discussion](https://forums.speedlife.net/t/buffalo-bills-2007-season-discussion/35063/574): > > turning it off at the ecu will not help the car pass emissions because it will not run the check to see if the o2 is functioning properly. I’ve been there. > > Get a o2 simulator and be done with it. > [http://www.zzperformance.com/grand\_prix/products1.php?id=834](http://www.zzperformance.com/grand_prix/products1.php?id=834) Thats strange, I have my rear o2’s completely disabled and removed, Cat codes, heater circuits… all disabled via HPTuners… and my emissions tests pass just fine. Granted I dont know how much different the E40 PCM on my Ls2 is, but cant be that far off… ---
**Author:** ![2003\_SSEi](https://avatars.discourse-cdn.com/v4/letter/2/b77776/32.png) [@2003\_SSEi](https://forums.speedlife.net/u/2003_SSEi)\ **Post date:** [December 17, 2008, 8:03am UTC](https://forums.speedlife.net/t/04-gtp-rear-02-delete/201013/29 "2008-12-17T08:03:10Z")
> [@He man: "What's Up?"](https://forums.speedlife.net/t/he-man-whats-up/38967/8): > > Thats strange, I have my rear o2’s completely disabled and removed, Cat codes, heater circuits… all disabled via HPTuners… and my emissions tests pass just fine. > > Granted I dont know how much different the E40 PCM on my Ls2 is, but cant be that far off… its the same. I have HP tuners, and deleted the Rear o2 from the PCM, no problems here. You dont need the Sim from ZZP plus as said before it wont work [Previous page](https://forums.speedlife.net/t/04-gtp-rear-02-delete/201013.md?page=1)