I bought a pair of TYGA aluminium cans for my MC21 a few months back. The bolt hole centres on the TYGA cans did not line up with flange holes on my mc21 pipes. The flange bolt holes on my MC21 pipes are 44mm centres (I don't know if that is standard for MC21 pipes ?). My TYGA can bolt holes are 38mm centres so a weld on TYGA adapter is needed to make them fit my MC21 pipes. I chose to modify my pipes bolt holes rather than have the TYGA adapters welded on. The TYGA cans gave a noticeable improvement in performance over the standard, much heavier Honda cans.
Happy customer !
Last edited by andyburton1977 on Tue Oct 02, 2018 1:25 pm; edited 1 time in total