Performance Modifications for the NG900 / Old 9-3
I wanted to get some input from the community on what my next investment should be for my 99 9-3.
Should I buy...
a koni kit?
a V2 downpipe and tuned ECU?
A bit of background, I have all the parts I need for a stage 4 tune minus the DP and ECU. As for the suspension I have new control...