R1 Performance Package for SL 65 up to MY 2006 (R230- 670 HP / 840 LB-FT) mercedes-benz-s-class--221---2007-2013--s-550-esr7929770 Our proprietary tuning module stores

Our proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file

For transparency and comparability

The RENNtech performance turbo upgrade is truly the ultimate upgrade for your GLC 63 AMG

Please note:

Gains: +10HP & 12LB-FT

R1 Performance Package for SL 65 up to MY 2006 (R230- 670 HP / 840 LB-FT) mercedes-benz-s-class--221---2007-2013--s-550-esr7929770 Our proprietary tuning module storesR1 Performance Package for 230 SL 65 AMG. Includes ECU Upgrade and High Efficiency Intercooler Pump. Up to 670HP and 840LB FT. Gains: +66HP & +102LB FT The R1 performance package includes our proprietary ECU tune and higher efficiency intercooler pump for increased, power, performance and throttle response across the entire powerband. R1 Performance Package includes: RENNtech ECU Upgrade RENNtech High Flow Intercooler Pump SL 65 (R230) Stock