You can finally stop waiting on a Z4 M.
The latest BMW Z4 is an impressive sports car, especially in M40i trim, which comes with a 3.0-liter turbocharged inline-six. In a recent dyno test, the six cylinder's output has been proven to be higher than the factory rating of 382 horsepower and 369 pound-feet of torque, which could explain why BMW's initial 0-60 quotes ended up being conservative. Most drivers will be perfectly enamored by the Z4's current output, but there are still hardcore enthusiasts out there waiting for a more potent Z4 M.
Since BMW refuses to build an M version of the Z4 (at least for now), the best alternative is an aftermarket-tuned version like the 500 hp Manhart Z4. But now there's an alternative sinceGerman tuner Dähler has announced its Competition Line tune for the (G29) Z4 M40i, and it looks like a great stand-in for the Z4 M.
The Z4 M40i Dähler Competition Line is available in two states of tune. Power increase level one is rated at 408 hp and 457 lb-ft of torque, while power increase level two brings output to 440 hp and 472 lb-ft of torque. Along with the output increase, Dähler also adds a stainless steel exhaust system, an adjustable competition coil-over suspension kit, lowering springs, 20- or 21-inch forged wheels wrapped in Michelin tires, and a distinctive front spoiler lip. Dähler says it is also working on a Competitive Clubsport coil-over kit that is adjustable in height and hardness as well as a glass draft shield, both of which will be available soon.
Dähler hasn't announced pricing for the Competition Line package but says customers can already call to schedule an appointment in order to receive the tune. The company also hasn't posted any performance stats for the tuned car, but it should be quicker than the stock car's 3.9-second 0-60 mph time. So if the new BMW Z4 looks appealing but you wish it had more power and stiffer suspension, Dähler's Competition line looks like the perfect option.
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