US-based Mercedes tuning specialist Renntech has created a 106 kW upgrade for the Mercedes SL65 Black.
The ‘Renntech Performance Package 1′ uses a revised ECU, dual intercoolers for the bi-turbo V12 and a sports exhaust, to boost the car’s power output to a total of 592 kW. Impressive on the standard SL65 Black Series was its torque figure of 1 000 Nm, however, Renntech have increased this to a teutonic 1 356 Nm.
Obviously, deploying 1 356 N.m of torque to the tarmac via the rear wheels is easier said than done. To give the Renntech SL65 a fighting chance of not being overwhelmed by physics, the tuning company has included a transmission upgrade as part of the package. A limited-slip differential, with the ability to range from open to 100 per cent locked, is deployed between the rear wheels to help keep the power in check.
Renntech are yet to provide any revised performance figures for the upgrade, but as the SL65 Black was no slouch in standard trim, expect the results to be explosive. Of course if you don’t want to go to Renntech to have your SL65 tuned, you could always try Brabus.
