Need info about supersprint magnum and eisenmenn exhaust

[markus_74]

hi,

Need upgrade on my old exhaust, and I decided between second hand supersprint magnum and eisenmenn (replica but all stainless steel)

does original supersprint magnum is made by stainless steel?

does stainless still is the best material for exhaust and have lifetime working life? or still have limited time because of rust?

any one here has try install any stainless replica exhaust? does is it good?

how is about supersprint sound compare to eisenmenn original sound?

thank you