RENNtech took the latest generation of M157 biturbo engines and spent months testing and developing RENNtech's line of performance turbos.RENNtech started with a set of motorsport derived ball bearing turbochargers from Garrett, one of the most respected turbo manufactures in the industry whose products offer rugged service life and OEM daily driver reliability. The lightweight forged billet wheels feature a dramatically larger than stock impeller (inlet side) and an increase in the turbine trim (exhaust side). This combination of high quality, light weight components coupled with less rolling resistance from the ball bearing cartridge compensates for turbo lag despite being a functionally larger turbo. The cartridge supporting shaft is also both larger and stronger designed to handle the larger wheels and added power. This entire cartridge is then fine balanced as a complete assembly to compensate for these increases. The impeller and turbine housings are then precision CNC machined and flow tested in-house to fit the larger internal cartridge. The end result is nothing short of spectacular with the RENNtech turbo package making an incredible 833 HP and 980 TQ at the crank!
More power isn't the only performance benefit as RENNtech's turbos spool quicker, offer a more responsive throttle and immediate power delivery thanks to a reduction in exhaust back pressure, rolling resistance, higher RPM's and a lighter rotating mass. In addition, RENNtech's turbo upgrade kit includes new high quality lines and fittings wrapped in heat resistant sleeves with every detailed piece manufactured and tested in-house to ensure years of 100% trouble-free and leak proof operation. These lines are made specifically to adapt to our turbos as this isn't just an OEM unit with machined internal; but a dramatically larger, more powerful turbocharger that blows away anything else on the market! The RENNtech performance turbo upgrade is truly the ultimate upgrade for your 63 series M157 biturbo!M157 Stock Performance
- 518 HP @ 5500RPM; 516 LB-FT @ 4800RPM
- 833 HP @ 5500 RPM; 980 LB-FT @ 3800 RPM
- RENNtech ball bearing Garrett derived turbo chargers
- Virtually no lag with impressive throttle response
- Leak proof, high quality lines and fittings with heat shielding
- Less rolling resistance offers quicker spooling
- Larger impeller (inlet) and turbine (exhaust) cartridge
- Mercedes-Benz, CLS63, C218, 2011-2013
This upgrade requires the RENNtech ECU upgrade. In addition we recommend the RENNtech downpipe and intercooler pump upgrade.
RENNTECHs philosophy has always been to produce products without compromise, and that dedication continues to this day. True to Mercedes-Benz quality, RENNTECH cars are designed to be fast yet refined. Regardless of specification, they run faultlessly, idle smoothly, and have reliability and ease of maintenance comparable to the stock Mercedes-Benz. This attention to detail has made RENNTECH the choice of some of the most discriminating enthusiasts in the world.