What's hot, What's not about the 5.9 Magnum

[Merc225hp]

I try and stay with 90 or better fuel, you will see a nice general increase in hp/tq and throttle responce. If you tow put the best fuel you can get in the tank.

 

[MattC]

Are you running the Mopar PCM Merc?

 

[Merc225hp]

^^^ Yes sir I am.

 

[DaRosa_5.9]

Will the 96 Performance PCM work on my 2001 5.9L?

Thanks in advance!

I found some available by yearone, is this a good deal?

https://www.yearone.com/Catalog/speed.shop/performance/mopar-performance/engine-controllers