So first of all the SDV6 engine in the DISCO4 is almost exactly the RRS SDV6 L494 engine, so why don't ECU tuners offer to take the D4 SDV6 to 330 hp like the RRS SDV6 ? and then when I think about it also from a fuel economy standpoint aren't I better off with a tuned L494 RRS SDV6 autobiography than a L494 SDV8 ? Further to that whom of you have tuned the SDV8 ?? The only reservation I have is that the untuned SDV6 in the RRS SDV6 sounds terrible ??

Hi Richard

I’ve had my sdv6 remapped by DMS. You can see my post in the L494 section of this website - it’s from about 2 weeks ago.

All in all a great improvement but doesn’t improve the sound at all.