Aftermarket exhaust system needs
 

I would like to remove my stock pipes and install the Cobra Streetrod Slashdowns to my 2009 C50. I understand this pretty easy to do and have someone that is willing to help (that has done this before; not on a Suzuki). Do I need to add a new air intake, filter, or anything fuel / fuel injection related? I don’t want it to run too lean or have backfire. Thanks.