Anyone know of a good 2 into 1 exhaust system for a 1991 FXR?

I had a thunder header on my fxr .. Ran good but actually only made power on the top end .. I still have that old header around and been thinking about cutting the collector off and setting it up for a slip on muffler which would kill two birds with one shot so to speak ... If you want a factory header i would go to vance and hines and see if they have a pro pipe setup that will fit you..Personally i found out a harley has too big of pipe on it for the job they do and i have built my own using 1.5 tubing and it gives great low and mid range torque and don't seem to hurt the top end all that much .. Makes the quieter too with little or no baffles ...