Looking at replacing the stock header pipe/cat with something a little cooler than the surface of the sun. Read about the Fullsac ceramic coated pipe and am leaning in that direction. Just have a couple of questions... How important will adding a fuel management system be to compensate for the additional airflow? I'm currently bone stock - will probably be that way for just a little while longer with slip-ons coming first followed by free flowing air filter when I save enough pennies (or Santa finds a way inside since I took down the chimney). Also, how would this affect the H-D warranty? I understand that the pipes (and directly associated components) would not be covered, but what about an unrelated component? Say the cams suddenly blew out the side of the engine - would that be covered? Just trying to have answers before the wifey pops a blood vessel when the big boxes show up...
