MindBend

An E55 I just purchased yesterday is said to have Kleeman headers and pulley. I can see the headers are certainly not stock and that that the car has Kleeman badges on it. Is there a way I can check to see if the ECU has been mod'd?

Also, where can I get manuals online? Both the owner manuals and/or service ones?

Many thanks!

Koru_Kinshi

Only way I can think of is to take it to a tuner. They'd have the equipment to check it out.