Re: Engine Upgrades, Waste Of Time/Money?
Assuming you have the 5.4L a lot can be done to those engines in terms of bolt on parts. To really make any modifications work well, and without worry of engine knock (the sensors can be overpowered under hard acceleration depending on the computer management) is installing a proper tune to get maximum performance out of the modifications, and perhaps some better cruising mileage.
To gain maximum performance with better breathing, a cold air intake (CAI) along with the heads, an aftermarket exhaust with better flow, and a proper tune to make it all work in harmony would be the way I'd go. It'll cost some bucks, but if you want performance it will help. Just don't think it will increase your mileage. Even if it does, you would probably have to drive 250K miles (or more) to see it pay off.
Without a tune, newer computer controlled engines will automatically regulate the standard stoichiometric ratio limiting the performance potential.
'00 Durango R/T 360ci 290hp (modded); 138,500m
'06 Pontiac G6 GT 3.5L 220hp; 44,000m
'12 Chrysler 200 Limited 3.6L 283hp; 13,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!