TORS question

Plus the TORs are shorter than the stock mufflers, so I would think you could only swap out the bottom one, or swap out the two top ones..

Its not the noise its the backfiring on deceleration that bugs me the most.. thing pops like a gun going off..
The only thing i found so far that works is the Powercommander, and i unloaded that for a tuneboy and still got the back firing.
Put Jardines on it and its worse now..
runs like a raped ape but not a fan of the popping.
anyone with a tune to get rid of it im all ears..
(K&N in the stock location)