ChiTown ///M Forum - Chicago's BMW ///M Club Site

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ROBO22 07-25-2017 09:44 AM

Removing my JB4
Hey guys need some input. I have a '13 335i and need to get my emissions tested. only aftermarket parts i have are JB4 and VRSF charge pipe. Ive gone twice now to emissions testing and failed both times with not ready codes on multiple parts of the test. I originally thought I might not have a complete drive cycle but that couldnt be the fact since ive been driving the car since april and been to st louis and back so that shouldnt be the issue. So the next step is to remove the JB4 i guess, any pointers on whether or not I need to remove it and if I do how to do it most efficiently and correctly I don't want to screw anything up.

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