Bingo.

Some aftermarket parts do really improve cars, but most of them (aluminium screws, ti nitride shafts, aluminium c hubs, and so on) hardly make any difference.

At most, they make a difference together. Al screws do nothing on their own, but paired to ti turnbuckles, lightened axles and so on, they end up adding.


Nothing VERY significant though, but still something.


Other things, like in this case, modified clutches, reduced dampener friction, and chassis braces, do really make a difference on the drivestyle of a car.


The driver is the biggest variable though.