Make sure when you buy the Tornado to get a couple of Turbonators as well.
Together they compliment nicely!

 

Definetely, you can stack them on top of each other.

 

i dont know man i have put them in two of my trucks and have gotten a average of 3-4 mpg's put you never know in less you get one and the way gas is going any thing is worth trying my personal preferance.


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