Today's Tuners

Ok since yu said 7.3 that helps in the discussion. As I said look at the diesel magazines, I think it was an issue or 2 ago in DP or DW that they discussed upgrades on a 7.3. If you need me to I will try to find the issue or just go to the web sites for each magazine as they have many on file to view. The weak links in a 7.3 supposedly are the air intake and the exhaust systems which tend to leak and hurt performance. Look for carbon/soot build up at the Y pipe where it attaches and where the bellows are. They supposedly used a brittle donut to seal and it deteriorates with time and the bellows leak. I just saw an ad for a new turbine wheel which is lighter and more efficient for the 7.3 in DP for this month. As has been said the trans is a weaker link, but only if you are really trying to push the hp button. again look at the 2 magazine websites to read up on what they say.