I'm installing a JRSC on a o1 b18b . I recently replaced my cat with a high flow cat but my o2 sensor harness wont reach to connect to the sensor...so my check engine light is on. My question is will the o2 sensor not being connected cause any problems with any of the JRSC's stuff. {guages, boost controller, ect} Any help would be appreciated

 

No it will not, the one primary one on the header would... but not the one on the cat will just throw a cel!

 

Thanks man. Thats all I needed to hear!