The Parts

The first item being tested on the Genesis is Dynojet's Combustion Management Device (CMD). The CMD is Dynojet's newest piggyback fuel computer designed to work in conjunction with the factory ECU. The CMD intercepts the factory ECU signals and controls both boost and injector duty cycle. The CMD software allows for data logging and real-time fuel tuning. An extra-large 48x48 fuel map allows for fine-tuning of the injector duty cycle. The CMD also has a built-in mass air flow (MAF) and manifold atmospheric pressure (MAP) sensor clamping to prevent boost and fuel cuts. In the future, Dynojet will be offering stage-based programs available for download on the company's website.

One of the easiest performance modifications to bolt-on to a vehicle is a high-flow intake system. Reducing intake restrictions on a turbocharged engine helps promote quicker boost response and increases overall power production. The Road Race Motorsports (RRM) short-ram intake for the Genesis Coupe 2.0T is constructed of mandrel-bent piping with black powder coating for a durable, lasting finish. The RRM intake includes all of the necessary mounting hardware including a washable K&N cone filter.

On the exhaust side, an RRM axle-back system will be used to reduce exhaust backpressure. The RRM exhaust is constructed from mandrel-bent stainless-steel piping. The muffler section features a Magnaflow stainless-steel high-flow canister. Dual staggered chromed stainless-steel exhaust tips finish off the exhaust system. The RRM muffler is ceramic-coated black to promote a stealthy look while ensuring durability and long service life. The RRM axle-back exhaust is designed to work on both the 2.0T and 3.8L models.

Dyno

In factory trim, the Genesis 2.0T is rated at 210 horsepower and 223 lb-ft of torque at the flywheel. With the Hyundai strapped to the Dynojet chassis dyno, the 2.0-liter turbo engine cranked out 191.14 horsepower and 195.9 lb-ft of torque. Based on the power figures the Genesis produced at the wheels, the engine is generating roughly 225 horsepower at the flywheel (15-percent driveline loss calculation). With an established baseline we moved forward with the modifications. The Dynojet CMD was installed within a couple of minutes. Carl Chastain of Dynojet worked his magic on the laptop computer, coaxing 221.93 horsepower and 291.67 lb-ft of torque to the wheels. By increasing the boost pressure, torque output jumped by nearly 100 lb-ft to the wheels. The additional boost pressure also helped generate over 30 more horsepower over the baseline.

With both the fuel and boost duty map optimized the next item was the RRM short-ram intake. Installing the intake is extremely straightforward and can be accomplished using a few simple hand tools. Once installed, the Hyundai was once again spinning the rollers. This time the 2.0-liter engine generated 222.16 horsepower and 297.92 lb-ft of torque. Although there was not as much peak power, gains as high as 12 horsepower and 10 lb-ft of torque can be seen at certain points on the dyno graph.

The last item installed was the RRM axle-back exhaust system. The exhaust was easily bolted in place using the factory hardware. The RRM exhaust gives the Hyundai a nice low growl at idle but with a stab of the throttle the Genesis comes to life. Besides the louder exhaust note, the RRM exhaust registered 225.54 horsepower and 300.58 lb-ft of torque to the wheels. At 5,500 RPM, the exhaust system generated 10 extra horses over the stock system.

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