RENNtech HHT-Hand Held Tuner | ECU Upgrade | R199 | SLR McLaren | 675 HP / 646 LB-FT | M155 | 5.5L V8 Supercharged mercedes-benz-slk-class--172---2011-2020--slk-350-esr9893956 0 L BiTurbo w/ EQ

0 L BiTurbo w/ EQ Boost | M177 | 725 HP & 765 LB-FT

All RENNtech Track Series wheels are sold with a lifetime structural warranty so you can be confident that you are using a high-performance wheel with factory backing

RENNtech Coilover Suspension for the W205 - C63 /S AMG Sedan

376 LB-FT @ 3500 RPM

RENNtech Sport I Series | Cast Wheels | Set of 2 Front and 2 Rear | Front: 19" x 8

RENNtech HHT-Hand Held Tuner | ECU Upgrade | R199 | SLR McLaren | 675 HP / 646 LB-FT | M155 | 5.5L V8 Supercharged mercedes-benz-slk-class--172---2011-2020--slk-350-esr9893956 0 L BiTurbo w/ EQThe RENNtech ECU Plus Upgrade brings the SLR McLaren up to 675 HP and 646 LB FT Gains: +47 HP and +25 LB FT. RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal! Our proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU.