BMW stopped production of the M3 Convertible a while ago, and it is now preparing for the release of its replacement, the M4 Convertible , next year. Until the M4 drop-top hits the market, German tuner Leib Engineering is giving M3 Convertible owners a chance to push their hard-top 3er to the next level.
Just like with the rest of the M3 family, the convertible version is powered by a 4.0-liter, V-8 engine with a total output of 414 horsepower and 295 pound-feet of torque, which was good enough to sprint the cabriolet to 60 mph in under five seconds. Leib Engineering obviously was not satisfied by these numbers, and pushed the M3 to 610 horsepower and 435 pound-feet of torque.
Getting the extra 196 ponies and 140 pound-feet of torque from the V-8 engine required a G-Power SK II CS supercharger, an additional fuel pump system, high-performance injector nozzles, colder spark plugs, induction air track made of carbon/stainless steel and an ECU remap.
The kit also includes a new sports exhaust system with double 100-cell sports catalytic converters from HJS and an exhaust valve that can be controlled through the M button on the steering wheel. The exhaust system features 65 mm (2.55-inch) diameter pipes, which is a nice jump from the factory 60 mm (2.36-inch) pipes.
The final step in creating this amazing M3 was to update the suspension and chassis to handle all of the extra power. This includes a KW DDC coilover setup that the driver can adjust via the M button or through the Electronic Damper Control button.
Click past the jump to read more about the BMW M3 Cabriolet by Leib Engineering.