Pay in 4 interest-free payments of $218.75 Learn more
Ships within 48 hours · Estimated delivery Sep 13 - Sep 18
CLS550 (C218 | PFL MY2012-14 | RWD | M157 | 4
Gains: +40HP & +70 LB-FT
larger tube diameters-measuring not 55 but 60 mm-and reduced power-consuming back pressure
4-Corner adjustability
RENNtech M276 Biturbo ECU Upgrades are TÜV approved
RENNtech Porsche 997 GT3 RS 3.8L ECU Upgrade (462 HP / 332 LB-FT) mercedes-benz-c-class--204-sedan---2008-2014--c-63-amg-esr4188940 CLS550 (C218 | PFL MY2012-14RENNtech Porsche 997 GT3 RS 3. 8L ECU Upgrade. Up to 462HP and 332LB FT. Gains: +12HP & +15LB FT Our proprietary Porsche ECU upgrade offers rock solid performance from RENNtech, the foremost tuning authority on Bosch and Siemens engine control units. These same units are utilized in Mercedes Benz vehicles, which RENNtech has been tuning since electronic engine management started to show up in vehicles during the mid 1980's, though our proprietary