RENNtech Porsche 997 GT2 ECU Upgrade (523 HP / 560 LB-FT) mercedes-benz-s-class--s222---2014-2017--s65-amg-biturbo-4matic-esr7187941 the S 550 gains up

the S 550 gains up to 92 HP and 167 LB-FT

GLS 450 BiTurbo (X166 - M276 Biturbo 4-MATIC Engine) Modified Performance:

212 - E 63 AMG BiTurbo 4-MATIC FaceLift (2014+)

AMG M177 -engines (2021+) GLE 63 | GLS 63

0 TPMS Compatible OEM tire size compatible Front: Style: RTS Size: 19" x 10" Weight: Construction: 1-piece Forged Tire Size: 275/35/19 Rear: Style: RTS Size: 19" x 10

RENNtech Porsche 997 GT2 ECU Upgrade (523 HP / 560 LB-FT) mercedes-benz-s-class--s222---2014-2017--s65-amg-biturbo-4matic-esr7187941 the S 550 gains upRENNtech Porsche 997 GT2 ECU Upgrade. Up to 562HP and 575LB FT. Gains: +40HP & 74LB 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 tuning