German tuning firm Carlsson has recently announced that they are are ready to bring a tuning kit for the Mercedes-Benz GL-Class to market.

The kit is entitled the RS and will feature aethstetic changes such as a new grill, stainless steel trim and a body kit. Additionally it will feature LED daytime running lights, 22-inch allow wheels and and suspension work for improved handling.

In terms of power, Carlsson will throw in a a sport air filter and an updated ECU thus upping the vehicle’s horsepower from 388 to 435.

via WorldCarFans

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If you thought Audi’s 2010 S4 was fast as it is, you’re in for a treat — The guys over at MTM have worked their magic and were able to up the car’s ante by a full 97HP with nothing more than an updated ECU and underdrive pulley.

This means an Audi S4 with the ~$3,500 MTM tuning kit will be able to produce a full 430HP, 380 pounds of torque and sprint from 0 – 60MPH in just 4.6 seconds. Any takers?

Read (Autoblog)

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