he reason I ask if a newer year model will fit as I want to install a Thundermax EFI controller closed loop efi management system onto my 2005 Dyna. I will be getting a new exhaust, haven't decided on model. The Thundermax provides 2 Oxygen sensors while the 2005 Dyna exhausts will only get 1 O2 sensor mount. You must get a newer model Dyna exhaust for 2 O2 sensors or have a sensor mount welded onto the older year exhaust. I don't want to do the weld on method as it will screw up the expensive chrome.
My Dyna has an open loop EFI system. FXDCI

Hope the question makes sense.

Thanks