Mazda Repair Questions? Ask Mechanics for Answers ASAP
Hello I will help you with your question,
How many miles on the truck/engine?
At 240 the engine is worn, rebuilding it is the only way to get more power. Unfortunately the cost to rebuild will exceed the value of the truck unless you can do the labor yourself.
Any attempt to install horsepower boosters to an engine with 240K will result in the destruction of the engine.
Let me know what I can do to help you with your questions