Do I need to reprogram my ecu
I have a mercedes ml63 amg 2009. The following are installed on my ml63:
Supersprint mufflers
Digi-tec chip
BMC air filter
Now my kleemann headers and down pipe are not installed yet on my car and my car's reading on te Dyno is 424.3 whp. I'm about to install my headers and down pipe. Do I need to modify my digi-tec chip? Whatdo you Gus think about a throttle body and a crank pulley?



