looking for B pipe modifications

[feartheride]

Was trying to search for info on hogging out the b pipe manifold and head pipe but no luck.Where can I find it. Just wondering if I should open up my holes.
i thought that they were made with different size inside dia. but f.p. tell me they were always the same ???????????

 

[Frosty]

measure it up and talk to Radney/Chuck at Team Scream. They opened mine to 48mm or 49mm i believe.

 

[SUPERTUNE]

Minimum size for any 701 and up is a true 47mm.