ML270 CDI which diesel
 

Hi,
I bought the ML270 CDI ( 05 ) about two years ago and the performance is a little average to say the least - although I did buy it to tow a twin axle caravan - great job at that. The brabus supercharger is not an option on this model and chipping is not recommended under the current warranty so my options are limited.
Have any members tried the the V Power / Ultimate routes with any success ?
The Millers Sport 4 additive looks to have a good report.
Any comments welcome.