Indy-Race mufflers were designed for use on certain motorcycles, mainly those requiring an under-seat muffler (making it difficult to use existing Arrow pots), but once available, Indy-Race mufflers were also used in some "standard" systems.
The design was inspired by the shape of certain American circuits (hence the name of the range); the cross-section reduces dimensions, while maintaining a good internal volume to dampen noise with very good power output. Internal parts in stainless steel, TIG / MIG welded
This silencer does not replace the original catalytic converter