BMW E34 E32 M60B40 404 ECU 7 Speed Shop Circuit Special Performance chip 6 speed

BMW E34 E32 M60B40 w/ 404 ECU 7 Speed Shop Circuit Special Performance chip. This is a new tune that has been thoroughly tested on our personal M60 powered 7 series. Most complete tune on the market with the largest HP and torque gains. Removes all rev hang issue on manual converted cars, completely revised fueling and ignition tables.

93-94 M60 4.0l without EWS-II, MANUAL transmission with OEM or lightweight flywheel

91 octane

Top speed limiter removed

6900 RPM limiter

We now have option for complete 404 dme with our chip pre-installed. Making the total install time under 15min.

Offroad and track use only