performance tuning
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Stage 2 Audi A3 1.8 TFSI CJS ECU File – Software SC800H4100000 SIMOS18 (Decat + Pop&Bang + RPM Max) 8V0906264A
Advanced Stage 2 tuning file for Audi A3 1.8 TFSI CJS engine (2015, DSG), based on Siemens SIMOS18 ECU with software ID SC800H4100000. Includes decat (no post-cat lambda), raised rev limiter, and Pop&Bang functionality in Sport mode. Designed for performance setups with downpipe/exhaust...