Only if you intend on pulling with your box up! You could run for a while on your factory charger with 150's but it wouldnt last long and it would be pretty hot, but as long as your not holding it, you'll be fine! ( Till the Charger Pops)

 

He only has to hold it stay ahead of our buddies 06 w/ smarty.

 

I pull 1800 Deg Everyday...... Its good for it I'd say that stock charger wont take much punishment up there

 

Both are a great choice. Just noticed that the F1's are cleaner and a better spray pattern. Just my $.02...

 

Much cleaner!!!!