I need a map for a Spec Ops pipe

[toddnet33]

I recently bought a 05 XB12R with a modified stock pipe, the guy I bought it from told me it was done by Special Ops. The bike pops like mad on deceleration, I checked for exhaust leaks and manifold leaks before I took it to the shop, they told me it was running to lean because of the pipe mod. Does anyone have a map for the spec ops pipe or any info on adjusting the map to richen the mixture?

p.s. I have already done the air box and crank vent mod and I have ECMSPY. [confused]