Audi B5 S4 / RS4 PNP for EMU Black Boomslang and will ensure the longevity

and will ensure the longevity of your engine even more

fully tuneable DSP knock control on individual cylinders

Optimized to provide even performance and consistent feedback

Recommended for 4-cylinder

Printed on high quality Gildan Heavy Blend cotton

Audi B5 S4 / RS4 PNP for EMU Black Boomslang and will ensure the longevityECUMASTER Plug and Play adapter for the Audi B5 S4 RS4 allows for plug and play installation of EMU Black standalone ECU. All ECUs are sold separately. The Audi B5 S4 RS4 adapter was developed on vehicles with the AGB and ASJ engine code. Customers have found other engine codes to be the same configuration. Please check the ECU pinout diagram your engine code to verify it matches the AGB ASJ pinout before purchasing. Works with 1999 2001 S4 2. 7T 1999