One of the most frequently asked questions we receive and we see online is concerning the issue of splicing into the factory wiring harness to install the new sensors needed for the LNF Stage 1 kit. We see the possible arise for concern if this was an aftermarket kit but rest assured that the connections made by the tech installing this kit at your local GM dealer will be as good as the factory connections, or else this kit would not be released as such. Regardless of that fact, some guys want to keep their engine bay as clean looking as possible or have some other reason for wanting a harness adapter and we understand that as well.