Is there any HP upgrades out there for the W124 400E, Software,exhaust,intake not to concerned about it ,but I have done software on other cars and got better mileage and a little more punch to boot. as far as the exhaust I would like to hear the V8 rumble alittle more. New to the Benz world but quickly becoming a big fan

The computers on those old cars are not really "upgradeable" like the new ones....they're a little more pre-historic.

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