Weistec Engineering – Mercedes-Benz M113 5.4L ECU Tune

Description

Weistec Engineering ECU tune for the M113-powered Mercedes-Benz models (2000-2011) with the NA 5.4L V8 (M113). Weistec’s crank figures put the tuned engine at 385 hp and 404 lb-ft, up from 349 hp and 391 lb-ft stock, from a recalibration of the factory ECU software.

Key Features:

• Up to +36 hp / +13 lb-ft: Weistec’s crank estimate of 385 hp and 404 lb-ft, from Dynojet testing; real gains depend on fuel, conditions and supporting modifications.
• Stage calibrations: W.1 (Stock Vehicle) and W.2 (Race Exhaust fitted), so the calibration matches the hardware on your car.
• Optional add-ons: Cypher Classic Handheld and 722.6 EGS52 TCU Upgrade, each selectable when you order.
• Reflash of the factory ECU: the original module is recalibrated rather than replaced with a stand-alone or piggyback unit.
• What changes: improved throttle response, optimized fuel and spark and top speed limiter removed.
• Tuning method: Cypher Classic: flashed at home with the Weistec Cypher Classic handheld.

Fitment:

• Mercedes-Benz C55 AMG 2004-2007 (W203) – NA 5.4L V8 (M113)
• Mercedes-Benz CL55 AMG 2000-2002 (C215) – NA 5.4L V8 (M113)
• Mercedes-Benz CLK55 AMG 2000-2006 (C208 / C209) – NA 5.4L V8 (M113)
• Mercedes-Benz E55 AMG 2000-2002 (W210) – NA 5.4L V8 (M113)
• Mercedes-Benz G55 AMG 2001-2003 (W463) – NA 5.4L V8 (M113)
• Mercedes-Benz ML55 AMG 2001-2005 (W163) – NA 5.4L V8 (M113)
• Mercedes-Benz S55 AMG 2000-2002 (W220) – NA 5.4L V8 (M113)
• Mercedes-Benz SL55 AMG 2000-2001 (R129) – NA 5.4L V8 (M113)
• Mercedes-Benz SLK55 AMG 2004-2011 (R171) – NA 5.4L V8 (M113)
• Mercedes-Benz SLK55 AMG Black Series 2006-2008 (R171) – NA 5.4L V8 (M113)

Not legal for sale or use on pollution-controlled motor vehicles; intended for competition use. Talk to us before ordering to confirm the right stage and tuning method for your car.