RENNtech ECU Hand Held Tuner (HHT) for SL 500 | R230 | 320 HP / 355 LB-FT | MY2003-2006 rpm Power gains are calculated based

Power gains are calculated based on stock numbers measured by RENNtech

All this while still maintaining the same approach angle as the OE front fascia so the RENNtech splitter retains the same clearance for parking stops and steep driveways

+ 10 HP & 15 LB-FT

Roadster Low Bracket Profile: SKU: 88

Produced in Germany

RENNtech ECU Hand Held Tuner (HHT) for SL 500 | R230 | 320 HP / 355 LB-FT | MY2003-2006 rpm Power gains are calculated basedRENNtech ECU HHT (HandHeldTuner) for the 2220 S 500. Up to 320HP and 355 LB FT. Gains: +18HP & +16LB 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. Programming