SPless
New member
So, for an OBS guy that's wanting to be around the 400-450 hp mark is the conversion to the super duty stuff worth it? Such as the drivers side manifold and uppipes? If I went that route plans would be a 38r, but if it would be just the same to go with a T4 kit and different charger I wouldn't bother. I guess the plus to that is the room to grow if I wanted to go bigger in the future?