E550 Coupe/Cabrio ?
#1
Member
Thread Starter
E550 Coupe/Cabrio ?
Hello everyone, anyone know of a good ECU upgrade for a 2011 E550 (non bi turbo)? I am looking for one that offers the MOST gains in horsepower/torque. If anyone knows any more mods that can be done to this NA V8 to increase horsepower/torque please post
Last edited by Barca93; 10-17-2013 at 01:49 PM.