W204 C63 JB4 Direct Boost Control Add On - B10001

The W204 C63’s M156 V8 responds sharply to precise boost modulation - and this JB4 Direct Boost Control Add On gives you exactly that. No reflashing. No dealer tools. Just plug-and-play control over the factory twin-turbo system via the JB4 platform.

• For W204 C63 only - not compatible with W205, W213 or any non-M156 application
• Enables stage 1 and stage 2 JB4 maps with full boost safety margins
• Essential for fast road, track day and OEM plus builds where throttle response and mid-range torque matter more than peak numbers
• Works with stock turbos, cat-backs, decat downpipes and intake upgrades - no extra license required if you already run JB4
• Search terms: jb4 w204, c63 m156 boost control, mercedes amg jb4 add on, w204 stage 2, jb4 direct boost w204, c63 fast road tuning