Workshop Journal: Auto Upgrades’ Supercharged E46 M3 Cooling Upgrade
Pushing a dyno-proven 570bhp out of an E46 M3 is something relatively achievable with supercharging, but it comes with compromises - the main one of which is heat, as found by Nathan at Auto Upgrades. Using a slightly customised ESS supercharger setup, his E46 M3 produces a dyno-proven 570bhp, helped along by some light internal mods to the engine. However, the...