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O2 Defouler

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21 replies to this topic




  • OEM Member
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Got it. Thanks for info, much appreciated.




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  • Joined 27-March 19

If i'm running Catless downpipe with this o2 defouler (no check engine light) 


do I still need to upgrade injectors? 



my car is all stock 2018 gtr, and my plan is to run 3'' catless dp and 4'' full straight pipe. 
no other planned future mods

Edited by stvegtr, 18 June 2019 - 04:53 AM.

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