Any benefits installing XiED or X14 with a SEPT? Already found out some products are not compatible. Returning stuff can be a bitch.
Thanks

 

The XiED is used to richen up the AFR. The SEPT is also used to tune the system for best AFR. So, basically you have two things trying to do the same thing. Pick one or the other.

If you have the SEPT installed, leave it on and get it tuned. Return the XiED