AMS Performance = Abedin Motorsports?
is there any gain on NA M113 engines?
http://www.ebay.de/itm/Mercedes-Benz...item35c8ccb80d




I've also read a lot of people claiming that it's bad for your engine long-term, and there's 1 C55k conversion whose AMS pulley failed and ruined the front of his engine.
there were a few engine failiures on this forum a few years ago when people bought AMS pulleys.
can these aluminium pulleys be compared to Evosport pulleys?
I know there's a reason why factory part is heavy and these aftermarket mumbo-jumbo pulleys are not.







