My point is there is no way you would ever recoup the cost. I've upgraded a couple of diesels over the years; except for all the EPA garbage on the 6.7, which was done for longevity, I didn't save enough fuel, nor did I put enough into upgrades to get any real power upgrades, but still wound up spending between $4,000 and $6,000 in the process, not to mention other related parts failures after upgrades. Personally, I'm with you; I'll use mine to commute and for family trips. If I start messing with it I'm guaranteed to incur repair bills that I don't need.I have to humbly disagree with you. Yes modern trucks, cars and bikes are designed to run with the new type of exhaust because they have to in order to meet emissions requirements. If you allow the engine to breathe without restriction and change the input (either flash the ECU or add a piggy back system), you will get better performance and fuel mileage, no question.
I have not tuned many cars but I work on bikes a fair bit. The first thing anyone does to improve performance is to put on a pipe and add a piggy back system or flash the ECU. Older bikes would require re-jetting and/or different needles and changing the air filter.
Take for example my last bike. Stock bike (with CAT) made 162 hp at the rear wheel. Removing the CAT and installing a slip on and a piggy back system called a Power Commander V with a map built for that pipe increased the HP to 181. Nothing else was done to the bike.
Yes it may be considered "small" by American standards but it is average everywhere else in the world. If I wanted that kind of hp and torque I would have gone with the 6.7. Most people don't need that kind of hp or torque. I use my truck as a daily driver and haul a trailer about once a month so having a truck with that much hp is complete overkill.
I am not trying to match the hp of an engine more than twice the size of mine, just wondering if anyone has done this or if they know what's involved.
There is no way that this engine is maxed out from the factory. In Europe they have been tuning diesel engines for years. I had a 335d and that put out 265 hp and 425 torque which is very close to what this one does and that was a bi-turbo. Through diesel tuning UK I got their plug and play system and it boosted the hp to 315 and the torque to 480. This is without changing the pipe, removing their version of the DEF or anything else. These engines can be tuned very effectively. I am sure you can get close to 350 hp and 500 ft lb of torque with a system like this and changing the pipe.
good read, i believe allpar also has more info on it too, it's one of the better sites out there for info like thisIf you google Inside The VM Motori 3.0L V6 Diesel Engine
Read more: Inside The Banks VM Motori 3.0L 630T V6 Diesel Engine - Diesel Power Magazine banks has already built one of these that's producing 630HP