Just bought an 09 Busa, set it up same way as my 08. The preformance is about the same on the top end, but the bottom end is extremely soft.
Does anyone know if the ECU or anything else was modified on these models? Based on how it acts, I feels like either the timing or fuel curves may be the issue.
Does anyone know if the ECU or anything else was modified on these models? Based on how it acts, I feels like either the timing or fuel curves may be the issue.