What would be the best pipes to put on my 2010 Sporty C 1200 to get the most out of the engine... HP , Torque.... Bike already has Arlen Ness Big Sucker , and Screamin Eagle Chip, massaged a little .... and , Hines Straight Shots... I ve been told a 2 into 1 exhaust would work better??

 

I have hear 2 into 1 or keeping stock headers are pretty good on the sporty with the crossover pipe.

 

I would suggest you ask this question over in the sportster page as those guys have lots of knowledge.