by Condor4jb1 » Mon Mar 27, 2017 8:58 pm
Anyone heard of any up grades for the 4jb1-t such as bigger valves heard injectors from a 4jg1-t 3.1 di fit can anyone shed any light in looking for as much performance as possible any problems I will encounter I will deal with when the time comes engines got 80k on it and is very well maintained, just extremely curious about the possibilities and what people have done, many thanks